Technological And Chemical 267

Tabulated Results obtained with the Crude Oils, at time of distillation, together with their Chief Constituents.

Complete data in reference to the oils of individual species are not given here, and fuller information concerning any particular oil will be found recorded under that species, to which further reference may be made. Where more than one result is given, the figures represent the highest and lowest and refer alone to our own investigations.

The differences shown with a particular oil are largely controlled by a predominance of a certain constituent characteristic of the species, and the time taken for the original distillation is also a contributing factor in varying the amount of high-boiling constituents. In the list of principal constituents recorded for each species, only the more pronounced are included, but others than those listed often occur in small quantities, and as these are of a general character they are not included in the list.

The specific gravities were taken at room temperature and corrected for 150 C, the correction for each degree being 0.00075. The refractive indices are the readings for a Zeiss Abbe refractometer with heatable prisms, and corrected for 200 C, the correction used being 0.00047 for each degree. The saponification number with many of the oils is large; this number is the sum of the esters and free acid values, although the free acid with most species is very small indeed. The solubilities in alcohol are, to a certain extent, an indication of the amount of constituents containing oxygen, and the determination is one of considerable value. The alcohol was standardised for absolute alcohol by weight, as a greater uniformity in strength could thus be secured. The 70 per cent, alcohol had specific gravity 0.872 and the 80 per cent. 0.8483, both at 15.5° C. If the oil was not soluble in 10 volumes 80 per cent. alcohol, it is classed as insoluble.

Volatile aldehydes occur in all crude Eucalyptus oils; where mentioned they were more pronounced than usual.

The phenols, tasmanol and australol, occur in all crude Eucalyptus oils, and for that reason are not tabulated; the amount present is usually very small.

Eudesmol occurs in both the liquid and crystallised conditions; where the word eudesmol alone is given it means the crystalline form.

Cineol is recorded in percentages for the original oils when first distilled, and also in an adjoining column for the identical samples after these had been stored away from the light and air for about 20 years. The analyses of the oils at this later period are recorded under the species in this work. With several of the oils increases in cineol were noticeable, and as the results in both cases were obtained by the phosphoric acid method they are comparable. With the majority of species, however, little or no alteration in cineol content had taken place.

The letters placed with the figures in the cineol columns indicate that the determinations were made by (R) the resorcinol method; (T) qualitatively determined, and (P) by the phosphoric acid method. In cases where letters are omitted, the determinations were carried out with phosphoric acid.

The yields of oil will be found recorded in a separate table. Articles dealing with the chief constituents will also be found in this work.

Cineol Percentages.

Specific Gravity at 15° C.

Optical

Rotation

aD.

Refractive

Index at 20° C.

Saponification Number.

Solubility

in Alcohol.

Principal Constituents.

In original oils when first distilled.

In same oils

after about

20 years.

E. acaciæformis .......

Traces ...

...

0.8864

+ 357°

1.4713

17.4

Insoluble.....

Pinene, sesquiterpene, geranyl. acetate.

E. accedens .......

43

....

0.9084

+13.4°

1.4691

4.6

9 vols. 70 per cent.

Pinene, cineol, eudesmol, sesquiterpene.

E. acervula .......

21 R.

....

0.8957 to

0.930.

- 1.1° to 1-.4°.

1.4724 to

1.4870.

32.8 to 40.7.

1 vol. 80 per cent.

Pinene, phellandiene, cineol, geraniol, geranyl.acetate, paraffins, sesquiterpene.

E. acmenioides .......

Traces ...

...

0.9252

Not taken

I.5008

8.6

1 vol. 80 per cent.

Pinene, phellandrene, sesquiterpene.

E. affinis .......

14

19

0.9259

+ 5.6°

1.4864

4.7

1 vol. 80 per cent.

Pinene, cineol, sesquiterpene, aromadendral.

E. aggregata .......

Nil.

...

0.9474 to

0.956.

+ .1.2°

1.4977 to 1.5005.

112.2 to 119.5.

Insoluble.......

Pinene, amyl-alcohol, amyl-eu-desmate, amyl-phenylacetate.

E. albens .......

30

...

0.9044

.6.5°

1.4679

8.5

1 vol. 80 per cent.

Pinene, cymene, cineol, aromadendral.

E. alpina .......

10 R.

...

0.8973

- 2.8°

1.4756

2.6

Insoluble

Pinene, cineol, paraffin, sesquiterpene, polyterpenes.

E. amygdalina .......

16

...

0.8668 to 0.8848.

59.1° to - 75.1°

1.4752 to 1.4781.

2.9 to 3.2.

7 vols. 70 per cent, to 1 vol. 80 per cent.

Phellandrene, cineol, piperi. tore, sesquiterpene.

E. amygdalina var. nitida ...

5R.

...

0.8625 to 0.8665.

- 45.74° to .57.8°.

1.4805 to 1.4833.

4.5 to

6.2.

insoluble...

Phellandrene, eudesmel, cineol, geraniol, piperitone.

E. Andrewsi .......

Traces ..

....

0.8646

41.5°

1.4831

4.3

.....

Phellandrene, piperitone, free alcohols, sesquiterpene.

E. angophoroides .......

18 P.

27 R.

0.9047

-11.5°

1.4824

7.3

1 vol. 80 per cent.

Phellandrene, cineol, pinene, sesquiterpene.

E. apiculala .........

5T.

8R.

0.9056 to 0.9112.

- 7.8° to - 8.4°.

1.4877

8.7 to 10.05.

1 vol. 80 per cent.

Pinene, piperitone, cineol, alcoholic bodies, esters, sesquiterpene.

E Australiana -

(Whole oil) .......

63

...

0.9157

+ 2.8°

1.4644

8.9

1 1/4 vols. 70 per cent.

Cineol, terpincol, geraniol, pinene, piperitone, citral, paraffin.

(1st hour oil) mean results

70

...

0.9196

+ 0.9°

1.4627

....

1.1 vol. 70 per cent.

E. Baeuerleni .......

20

...

0.8895

+ 4.05°

1.4784

9.98

4 vols. 80 per cent.

Cineol, pinene, eudesmol, sesquiterpene.

Cineol Percentages.

Specific Gravity at 150 C.

Optical Rotation

Refractive

Index at 20° C.

Saponification Number.

Solubility

in Alcohol.

Principal Constituents.

In original oils when first distilled.

In same oils

after about

20 years.

E. Bancrofti ...

30

....

0.8982

-14.4°

1.4721

12.9

1 vol. 80 per

cent.

Pinene, phellandrene, cineol, alcoholic bodies.

E. Behriana ...

45

53

0.9237

+ 37°

1.4708

11.1

1 1/2 vols. 70 per cent.

Cineol, pinene, liquid eudes. mol, sesquiterpene.

E. bicolor ...

48

62

0.9155

+ 5.5°

1.4675

8.4

1 1/2vols. 70 per cent.

Cineol, pinene.

E. Blaxlandi ...

21

.....

0.8881

+ 11.0°

1.4653

4.8

6 vols. 80 per cent.

Pinene, cineol, sesquiterpene.

E. Bosistoana ....

35

58

0.9078

+ 9.26°

1.4675

3.2

5 vols. 70 per cent.

Cineol, pinene, terpineol, sesquiterpene.

E. botryoides ...

Traces ..

....

0.8774 to 0.8778.

+23.75° (1st frac).

1.4730

15.2 to 21.4.

7 vols. 80 per cent. to 9 vols. 80 per cent.

Pinene, sesquiterpene, esters,

E. Bridgesiana ....

65

79

0.9120 to 0.9246.

+1.8° to + 3.35°

1.4655 to 1.4672.

6.2 to

87.

1 1/2 vols. 70 per cent.

Cineol, pinene, sesquiterpene.

E. ccerulea .....

17

20

0.9158

+ 12.7°

1.4827

6.4

1 vol. 80 per cent.

Pinene, phellandrene, cineol, liquid eudesmol, geraniol, sesquiterpene.

E. calophylla .....

Traces ..

.....

0.8756

+ 22.9°

1.473I

10.5

Insoluble

Pinene, cymene, sesquiterpene, esters.

E. calycogona .....

50

...

0.9152

+ 7.6°

1.4659

7.3

5 vols. 70 per cent.

Pinene, cineol, alcoholic bodies, sesquiterpene.

E. campanulata .....

5T.

...

0.8804

-25.8o

1.4847

7.6

Insoluble

Phellandrene, cineol, eudesmol, piperitone, sesquiterpene.

E. camphora ...

50

.....

0.9071 to 0.9167.

+1.3°

1.4676

4.4

1 1/2 vols. 70 per cent.

Cineol, pinene, eudesmol, sesquiterpene, volatile aldehydes.

E. capitellata ...

25

26

0.9175

+ 4.4°

1.4771

4.3

1 vol. 80 per cent.

Cineol, pinene, phellandrene, sesquiterpene.

E. carnea .....

10 T.

11 R.

0.8901 to 0.8963.

+ 37.2° to + 39.0°

1.4681

35.5

7 vols. 80 per cent.

Pinene, cineol, terpinyl-acetate, sesquiterpene.

E. cinerea .....

54

60

0.9113 to 0.9225.

+ 2.5° to + 4.1°.

1.4649

14.4 to

24.0.

1 1/2 vols. 70 per cent.

Cineol, pinene, esters, volatile aldehydes, sesquiterpene.

E. citriodora ...

Nil.

....

0.8657 to 0.8697.

- 1.0° to + 1.7°.

1.4515 to 1.4596.

7

1 1/2 vols. 70 per cent.

Citronellal, esters, free alcohols.

E. cneorifolia ....

62

....

0.9229

.3.3°

1.4664

7.4

1 1/4 vols. 70 per cent.

Cineol, pinene, aromadendral, alcoholic bcdies.

Cineol Percentages.

Specific Gravity at 150 C.

Optical Rotation

Refractive

Index at 20° C.

Saponification Number.

Solubility

in Alcohol.

Principal Constituents.

In original oils when first distilled.

In same oils

after about

20 years.

E. coccifera ...

5T.

...

0.8810

.35.8°

1.4849

4.9

Insoluble ...

Phellandrene, cineol, eudesmol, piperitone, sesquiterpene.

E. conica ...

48

0.9057

+ 5.24°

1.4676

6.26

6 vols. 70 per cent.

Cineol, pinene, sesquiterpene, volatile aldehydes.

E. Consideniana ...

40

...

0.9207

+2.9°

1.4737

3.7

2 vols. 70 per cent.

Cineol, phellandrene (traces), pinene, liquid eudesmol, paraffin, terpineol.

E. cordata ...

55

65

0.9138

+ 8.5°

1.4638

14.85

1 1/4 vols. 70 per cent.

Cineol, pinene, esters, volatile aldehydes, sesquiterpene.

E. coriacea ...

ST.

6R.

0.8947 to 0.8983.

- 27.0° to -29.3°

1.4845 to 1.4890.

37 to 4.6.

1 vol. 80 per cent.

Phellandrene, pinene, piperitone, eudesmol, cineol, sesquiterpene.

E. cornuia ...

31

....

0.9043

+ 10.1°

1.4601

25.4

2 vols. 70 per cent.

Pinene, cineol, amyl-alcohol, esters, alcohols, sesquiterpene, volatile aldehydes.

E. corymbosa ...

Traces ...

....

0.883

- 8.4°

1.4838

3.8

Insoluble ...

Pinene, aromadendral, sesquiterpene, cineol.

E. corynocalyx ...

20R.

.....

0.8945

+ 8.1°

1.4779

7.7

4 vols. 80 per

cent.

Pinene, cineol, sesquiterpene.

E. cosinophylla ...

43

...

0.9108

- 3.2°

1.4659

5.6

7 vols. 70 per cent.

Cineol, pinene, aromadendral, sesquiterpene.

E. costata ...

57

....

0.9216

+ 4.8°

1.4657

4.5

1 1/4 vols. 70 per cent.

Cineol, pinene, alcoholic bodies, sesquiterpene.

E. crebra ...

22

.....

0.8986

- 10.8°

1.4787

6.2

Insoluble ...

Phellandrene, pinene, cineol, sesquiterpene.

E. Dalrympleana ...

50

....

0.9133 to

0.9145.

+ 4.6° to + 6.7°.

1.4639 to 1.4645.

7.8 to 8.5.

2 vols. 70 per cent.

Cineol, pinene, esters, sesquiterpene.

E. Dawsoni ...

Traces ..

5R.

0.9418

*.23.5°

1.5077

13.3

2 vols. 80 per cent.

Phellandrene, cineol, esters, sesquiterpene, polyterpenes.

E. dealbata ...

52

73

0.9261

+ 3.8°

1.4648

2.1

1 1/4 vols. 70 per cent.

Cineol, pinene, sesquiterpene, liquid eudesmol.

E. Deanei ...

8T.

...

0.9216

.3.2°

1.4896

21.4

2 vols. 80 per cent.

Pinene, cineol, cymene, aromadendral, esters, sesquiterpene.

E.. Delegalensis ...

Traces ..

....

0.8596 to

0.8676.

- 47.4° to .58.6°.

1.4812 to 1.4863.

3.1 to 3.5.

Insoluble ...

Phellandrene, piperitone.

E. dextropinea ...

5T.

6R.

0.8758 to

0.8778.

* + 32.46° to + 32.83

1.4684

22.9

Insoluble...

Pinene, esters, cineol, sesquiterpene.

* 1st Fraction.

Cineol Percentages.

Specific Gravity at 150 C.

Optical Rotation

Refractive

Index at 200 C.

Saponification Number.

Solubility

in Alcohol.

Principal Constituents.

In original oils when first distilled.

In same oils

after about

20 years.

E. diversicolor ........................

Traces ...

....

0.8948 to 0.9145.

+ 20.5° to

+ 30.1°.

1.4671 to 1.4748.

41 to 53.2.

1 vol. 80 per cent. to 4 vols. 80 per cent.

Pinene, terpineol, geraniol and their esters, butyl. butyrate, sesquiterpene.

E. dives .........

8R.

.....

0.8713 to

0.9020,

according to time of distillation.

-55.4° to -64.3°.

1.4798 to 1.4811.

2.9

1 vol. 80 per cent, to insoluble; solubility governed by amount of piperitone present.

Phellandrene, pinene, piperitone, cineol, alcoholic bodies.

E. dumosa ........

44

....

0.9016 to 0.9151.

+ 2.2° to

+16.4°.

1.4667 to 1.4703.

2.9 to 3.7.

1 3/4 vols. 70 per cent, to 1 vol. 80 per cent.

Cineol, pinene, aromadendral.

E. elcsophora ..........................

58

66

0.9191 to 0.9266.

+ 3.1° to + 57°.

1.4663

8.7

1 1/4 vols. 70 per cent.

Cineol, pinene, eudesmol, aromadendral, esters.

E. eugenioides .....

31

58

0.9122 to 0.9132.

+ 3.4° to + 4.8°.

1.4694

6.9

6 1/2 vols. 70 per cent., solubility increases on keeping.

Cineol, pinene, sesquiterpene.

E. eximia ..................................

Traces ..

...

0.8998

+ 28.8°

1.4832

4.5

Insoluble .....

Pinene, sesquiterpene, liquid eudesmol, geraniol.

E. exserta ........

29

...

0.8977

+ 12.2°

1.4729

4.7

5 vols. 80 per cent.

Cineol, pinene, aromadendral, sesquiterpene, volatile aldehydes.

E. fasciculosa ..........................

15

....

0.9041

+ 6.3°

1.4789

22.1

10 vols. 80 per cent.

Cineol, pinene, esters, sesquiterpene.

E. fastigata ........

8T

10R.

0.8925 to 0.9001.

+ 2.8° to

.9.5° (1st fract.) depending on amount of phel. landrene

1.4816

12.4 to

14.9.

5 vols. 80 per cent. to insoluble.

Pinene, phellandrene, eudesmol, cineol.

Cineol Percentages.

Specific Gravity at 150 C.

Optical Rotation

Refractive

Index at 200 C.

Saponification Number.

Solubility

in Alcohol.

Principal Constituents.

In original oils when first distilled.

In same oils

after about

20 years.

E. Flelcheri ........

10T.

10R.

0.8805 to 0.8950.

- 12.5°

1.4824

3.4

2 vols. 80 per cent. to insoluble.

Phellandrene, pinene, aroma. dendral, sesquiterpene.

E. fraxinoides ...........

10T.

12R.

0.8687

-27.5°

1.4851

3.7

Insoluble .......

Phellandrene, pinene, cineol, piperitone, eudesmol, sesquiterpene, citral.

E. globulus ..........

57

64

0.913

+ 8.4°

1.4663

2.1

1 1/2 vols. 70 per cent.

Cineol, pinene, eudesmol, sesquiterpene, volatile aldehydes.

E. gomphocephala ........

Nil.

0.8759

Not taken

1.4758

257

Insoluble

Phellandrene, pinene, esters.

E. goniocalyx .............

56

56

0.9117 to 0.9125.

+ 4.35° to + 7.2°.

1.4689

13.3

1 1/2 vols. 70 per cent.

Cineol, pinene, eudesmol, sesquiterpene, esters, volatile aldehydes.

E. gracilis .............

19

30

0.9098

+1.35°

1.4714

6.2

1 vol. 80 per cent.

Cineol, pinene, cymene, aromadendral, volatile aldehydes.

E. Gullicki ............

46

0.9285

+ 6.7°

1.4717

4.6

1 1/4 vols. 70 per cent.

Pinene, cineol, eudesmol, geraniol.

E. Gunnii ............

26

0.8984 to 0.9014.

.4.3° to + 47°.

1.4743 to 1.4799.

4.4 to 6.7.

4 vols. 80 per cent. to 8 vols. 80 per cent.

Pinene, phellandrene, cineol, liquid eudesmol, sesquiterpene.

E. haepmastoma ..........

9R.

0.9065 to

0.9195.

.5.5°

1.4902 to 1.4955.

4.4 to

5.1.

1 vol. 80 per cent. to insoluble, due to amount of eudesmol present.

Phellandrene, cineol, eudesmol, geraniol, sesquiterpene.

E. hemilampra .....

35

50

0.9282

+ 7.09°

1.4678

24.4

1 1/2 vols. 70 per cent.

Cineol, pinene, esters, alcoholic bodies, volatile aldehydes, sesquiterpene.

E. hemiphloia......

18

20

0.9117

.6.85°

1.4853

5.8

2 vels. 70 per cent.

Pinene, cineol, aromadendral, cymene, alcoholic bodies, sesquiterpene.

E. intermedia .......

Traces ..

0.8829 to 0.8881.

+ 9.9° to

+ 12.2°.

1.4821

2.5 to 3.8.

Insoluble .......

Pinene, sesquiterpene, aromadendral.

E. intertexta ......

35

60

0.9078

+ 9.71° to +10.25°

1.4691

4.9 to 5.4.

2 vols. 70 per cent.

Cineol, pinene, sesquiterpene.

Cineol Percentages.

Specific Gravity at 150 C.

Optical

Rotation

aD.

Refractive

Index at 20° C.

Saponification Number.

Solubility

in Alcohol.

Principal Constituents.

In original oils when first distilled.

In same oils

after about

20 years.

E. Irbyi ........

15P.

....

0.9021

-1.7°

1.4829

8.5

4 vols. 80 per cent.

Pinene, phellandrene, cineol, sesquiterpene.

E. laciea .........

10T.

22R.

0.8752 to 0.8826.

Inactive

1.4845

8.56 to 11.53.

2 vols. 80 per cent, to 5 vols. 80 per cent.

Pinene, cymene, cineol, eudes. mol, sesquiterpene.

E. lævopinea ...

10T.

13R.

0.8755 to 0.8875.

- 307° to .37.8°.

1.4686 to 1.4704.

7 to II

10 vols, 80 per cent.

Pinene, cineol, sesquiterpene.

E. Laseroni ...

5T.

...

0.9095

- 8.1°

1.4790

13.4

6 vols. 80 per

cent.

Pinene, cineol, phellandrene, esters, sesquiterpene.

E. Lehmanni ...

20

...

0.8964

+ 17.5°

1.4653

67

1 vol. 80 per cent.

Pinene, cineol, sesquiterpene, volatile aldehydes.

E. leucoxylon ...

27

....

0.8987

+ 9.2°

1.4711

3.8

1 vol. 80 per cent.

Pinene, limonene, cineol, sesquiterpene.

E. ligustrina ...

5R.

...

0.9499

+ 22.4°

1.4974

9.0

1 vol. 80 per cent.

Eudesmol, pinene, cineol, geranyl-acetate, geraniol, sesquiterpene.

E. linearis .........

46

....

0.9036 to 0.9096.

-9.9° to -23.1°.

1.4677 to 1.4734.

5.8

6 vols. 70 per cent, to 8 vols. 70 per cent.

Phellandrene, cineol, liquid eudesmol, sesquiterpene.

E. longicomis ........

56

...

0.9203

+ 5.0°

1.4670

10.8

1 1/2 vols. 70 per cent.

Pinene, cineol, esters, alcoholic bodies, sesquiterpene.

E. longifolia .........

45

6l

0.9226

+ 2.86°

1.4681

3.6

1 1/4 vols. 70 per cent.

Cineol, pinene, sesquiterpene.

E. Luehmanniana .......

10T.

...

0.879

-27.5°

1.4880

2.3

Insoluble....

Phellandrene, pinene, cineol, piperitone, eudesmol.

E. Macarthuri ..........

(including bark oil).

Nil.

...

0.9214 to 0.9245.

+ 1.2° to

+ 3.6°.

1.4706 to

1.4718.

173.4 to 224.0.

1 1/4 vols. 70 per cent, to 1 1/2 vols. 70 per cent.

Geranyl-acetate, free geraniol, pinene, eudesmol.

E. macrorhyncha .........

30

...

0.929

- 1.0°

(1st fract.)

1.4745

8.4

1 3/4 vols. 70 per cent.

Pinene, phellandrene, cineol, eudesmol, sesquiterpene.

E meculata........

20

21

0.8959 to 0.9201.

+ 5.1° to + 77°.

1.4804

6.5 to 9.5.

1 vol. 80 per cent. to 4 vols. 80 per cent.

Pinene, cineol, sesquiterpene.

Cineol Percentages.

Specific Gravity at I5°C.

Optical Rotation

Refractive

Index at 20° C.

Saponification Number.

Solubility

in Alcohol.

Principal Constituents.

In original oils when first distilled.

In same oils

after about

20 years.

E. maculosa ...

55

55

0.9158 to 0.9229.

+ 2.3° to + 3.35°.

1.4684

87 to 21.3.

1 3/4 vols. 70 per cent.

Cineol, pinene, liquid eudes. mol, esters, sesquiterpene.

E. Maideni ...

50

62

0.9247

+ 5.8°

1.4679

21.8°

1 1/2 vols. 70 per cent.

Cineol, pinene, esters, sesquiterpene.

E. marginata ...

8T.

...

0.8889 to 0.9117.

- 8.5° to - 10.4°.

1.4889

10.3 to 13.1.

1 vol. 80 per cent, to 5 vols. 80 per cent.

Pinene, cymene, cineol, aroma-dendral, sesquiterpene, esters.

E. Marsdeni ...

Nil.

....

0.9469

+ 4.8°

1.4989

2.0

Insoluble ......

Sesquiterpene, pinene.

E. megacarpa ...

12

...

0.8852

- 31.2°

1.4719

7.5

10 vols. 80 per cent.

Pinene, limonene, terpinene, cineol, geranyl-acetate.

E. melanophloia.....

5T.

5R.

0.8959

.23.5°

1.4893

11

Insoluble .......

Phellandrene, pinene, cymene, cineol, eudesmol, sesquiterpene.

E. melliodora ...

52

...

0.9042 to

0.9321.

+ 5.0° to + 6.5°.

1.4649

7.2 to 21.96.

1 1/2 to 6 vols. 70 per cent.

Cineol, phellandrene, pinene, sesquiterpene, esters.

E. microcorys....

10T.

30P.

0.895

+18.3°

1.4690

19.6

1 vol. 80 per cent.

Cineol, pinene, esters, sesquiterpene.

E. microtheca....

5T.

5R.

0.8855

- 27.2°

1.4838

4.3

Insoluble ......

Phellandrene, pinene, cineol, cymene, sesquiterpene.

E. Moorei.....

56

...

0.9289

+ 6.12°

1.4699

6.1

1 /4vols. 70 per cent.

Cineol, pinene, eudesmol, paraffin, sesquiterpene.

E. Morrisii ...

60

64

0.9097 to 0.9164.

+ 3.76° to + 6.1°.

1.4636

8.1

1 1/2 vols. 70 per cent.

Cineol, pinene, sesquiterpene.

E. Muelleri ...

57

...

0.9097

+10.4°

I.4647

15.3

4 vols. 70 per cent.

Cineol, pinene, esters, sesquiterpene.

E. Nepeanensis .....

56

68

0.9259

+ 1.1°

1.4677

3.6

1 1/4 vols. 70 per cent.

Cineol, pinene, sesquiterpene.

E. nigra.....

8T.

11R.

0.8744

-34.0°

1.4706

7.2

Insoluble .......

Pinene, cineol, sesquiterpene.

E. nova-anglica ....

Traces ..

6R.

0.907 to

0.9301.

+ 0.9° to

-14.5° (due to the

amount 0 pinene present).

1.4843 to

1.4932.

5.1 to 6.9.

Insoluble ......

Pinene, sesquiterpene, cineol, alcohols.

Cineol Percentages.

Specific Gravity at 15° C.

Optical Rotation

Refractive

Index at 200 C.

Saponification Number.

Solubility

in Alcohol.

Principal Constituents.

In original oils when first distilled.

In same oils

after about

20 years.

E. obliqua ...........

8T.

15r.

0.8836 to 0.8902.

- 24.2° to

- 28.8°.

1.4836 to 1.4877.

7.2 to 8.1.

1 vol. 80 per cent, to 4 vols. 80 per cent.

Phellandrene, cineol, aroma. dendral, cymene.

E. occidentalis ........

36

....

0.9135

+ 9.0°

1.4717

2.5

1 vol. 80 per cent.

Pinene, cineol, aromadendral, sesquiterpene.

E. odorata .............

63

....

0.9193

- 1.1°

I.4639

8.5

1 1/2 vols. 70 per cent.

Cineol, pinene, aromadendral, alcoholic bodies.

E. oleosa ...........

52

62

0.925

-1.5°

1.4689

4.9

1 1/4 vols. 70 per cent.

Cineol, pinene, aromadendral, sesquiterpene.

E. oreades ..............

Traces ...

....

0.8869

- 22.7°

1.4888

8.2

1 vol. 80 per cent.

Phellandrene, pinene, eudesmol, piperitone, sesquiterpene.

E. ovalifolia .........

5T.

....

0.9058

.8.9°

1.4864

6.2

1 vol. 80 per cent.

Phellandrene, pinene, cineol, sesquiterpene.

E. ovalifolia var. lanceolata ...

45

56

0.9083

- 4.26°

1.4654

3.8

2 vols. 70 per cent.

Pinene, phellandrene, cineol, sesquiterpene.

E. paludosa .......

23

26

0.9056

+ 10.0°

1.4716

18.4

1 vol. 80 per cent.

Pinene, cineol, geranyl-acetate, sesquiterpene.

E. paniculata..........

29

....

0.901

+ 7.8°

1.4744

7.n

1 vol. 80 per cent.

Pinene, cineol, alcoholic bodies, sesquiterpene.

E. Parramattensis .........

75

....

0.9223

+ 2.7°

1.4629

4.6

1 1/2 vols. 70 per cent.

Cineol, pinene, sesquiterpene, volatile aldehydes.

E. parvifolia ..........

69

....

0.9177

+ 3.6°

1.4644

5.6

1 1/4 vols. 70 per cent.

Cineol, pinene, liquid eudesmol, volatile aldehydes.

E. patentinervis ..........

Nil.

....

0.8735

- 15.2°

1.4891

6.2

Insoluble

Terpenes, limonene, citral, alcohols, sesquiterpene.

E. Perriniana .............

58

....

0.9082 to 0.9119.

+ 57° to + 8.9°.

1.4612 to 1.4628.

12.3 to 52.5.

2 vols. 70 per cent, to 7 vols. 70 per cent.

Cineol, pinene, esters, volatile aldehydes, sesquiterpene.

E. phlebophylla ......

9R.

....

0.8766 to

0.9132.

- 19.1° to -32.5°.

1.4679 to

1.4836 (governed by the eudesmol present).

3.2 to 4.0

Insoluble

Pinene, eudesmol, cineol.

Cineol Percentages.

Specific Gravity at 150 C.

Optical Rotation

Refractive

Index at 200 C.

Saponification Number.

Solubility

in Alcohol.

Principal Constituents.

In original oils when first distilled.

In same oils

after about

20 years.

E. phellandra ....

25 to 40

....

0.8948 to 0.9116.

- 7.1° to

- 22.2°.

(depending on amount of phellan. drene).

1.4700

37

1 1/4 vols. 70 per cent. to 3 vols. 70 per cent.

Cineol, phellandrene, pinene, eudesmol, terpineol, geraniol.

E. pilularis ...

8T.

11R.

0.885 to

0.903.

- 4.2° to

+ 11.1° (1st fract, always lævo-rota. tory).

1.4904

5.9

8 vols. 80 per cent. to insoluble.

Phellandrene, pinene, cineol, sesquiterpene, liquid eudesmol.

E. piperita ......

20P.

22R.

0.9111

.2.7°

1.4781

11.0

1 vol. 80 per cent.

Phellandrene, pinene, cineol, piperitone, eudesmol, sesquiterpene.

E. Planchoniana

Nil.

...

0.9039

Not taken

Not taken

7.1

1 vol. 80 per cent.

Phellandrene, sesquiterpene.

E. platypus ...

48

....

0.9103

+ 10.2°

1.4639

15.2

1 3/4 vols. 70 per cent.

Cineol, pinene, esters, alcoholic bodies, sesquiterpene, volatile aldehydes.

E. polyanthemos .....

54

65

0.9281

+ 5.4°

1.4679

20.7

1 1/4 vols. 70 per cent.

Cineol, pinene, esters, sesquiterpene.

E. polybractea .....

75

....

0.9143 to 0.9275.

- 1.9° to + 1.8°.

1.4594 to 1.4679.

4.5

1 vol. 70 per cent, to 1 1/2 vols. 70 per cent.

Cineol, pinene, aromadendral, alcoholic bodies, sesquiterpene.

E. populifolia...

62

70

0.9207 to

0.923.

+ 0.4° to

+ 1.2°.

1.4652

1.9

1 1/4 vols. 70 per cent.

Cineol, pinene, sesquiterpene.

E. propinqiui ...

32

39

0.8980

+ 4.4°

1.4731

8.4

8 vols. 70 per cent.

Pinene, cineol, aromadendral, sesquiterpene.

E. pulverulenta.....

60

74

0.9236

+ 2.12°

1.4629

18.4

1 1/4 vols. 70 per cent.

Cineol, pinene, esters, sesquiterpene.

E. pumila .........

74

....

0.9237

+ 2.3°

1.4683

3.2

1 1/4 vols. 70 per cent.

Cineol, pinene, aromadendral, sesquiterpene.

E. punctata .......

55

55

0.9160

+ 0.85°

1.4717

18.8

1 1/4 vols. 70 per cent.

Cineol, pinene, aromadendral, esters, sesquiterpene.

Cineol Percentages.

Specific Gravity at 15° C.

Optical

Rotation

aD.

Refractive

Index at 200 C.

Saponification Number.

Solubility

in Alcohol.

Principal Constituents.

In original oils when first distilled.

In same oils

after about

20 years.

E. punctata var. didyma....

12

0.9033 to

0.9070.

- 4.2° to .5.9°.

1.4811

10.9 to 11.6.

7 vols. 70 per cent.to 2 vols 80 per cent.

Cineol, pinene, cymene, aroma-dendral, sesquiterpene.

E. quadrangulala ........

32

54

0.9064

+10.7°

1.4625

4.9

2 vols. 70 per cent.

Cineol, pinene, sesquiterpene.

E. radiata ..........

Traces ..

0.8643 to

0.8747.

.5975° to - 777°.

1.4777 to 1.4806.

4.4 to 8.4.

Insoluble

Phellandrene, pinene, cineol, piperitone, piperitol, esters.

E.redunca ........

38

0.9097

+13.5°

1.4663

2.4

6 vols. 70 per cent.

Cineol, pinene, sesquiterpene.

E. regnans .........

Nil.

0.8802 to 0.8879.

- 24.4° to -31.1°.

1.4882 to 1.4901.

13.2 to

15.4.

5 vols. 80 per cent.

Phellandrene, eudesmol, geran-iol, esters, piperitone, sesquiterpene.

E. resinifera .......

50

56

0.9098

+ 2.25°

1.4698

9.2

1 3/4 vols. 70 per cent.

Cineol, pinene, sesquiterpene, esters.

E. Risdoni .......

46

0.9045 to 0.9079.

-9.9° to -14.6°.

1.4656 to

1.4677.

2I.I to

23.8.

3 vols. 70 per cent. to 5 vols. 70 per cent.

Cineol, phellandrene, piperitone, esters, amyl-alcohol.

E. robusta ..........

5 to 10T.

0.8777

+ 4.0°

1.4744

9.1

8 vols. 80 per cent.

Pinene, sesquiterpene, cineol, esters.

E. Rodwayi .......

50

0.9075

+ 10.6°

1.4671

3.96

6 vols. 70 per cent.

Cineol, pinene, liquid eudesmol, sesquiterpene.

E. Rossii ........

40

55

0.9168 to

0.9243.

+ 7.2° to + 9.8°.

1.4684

7.9

1 1/2 vols. 70 per cent.

Cineol, pinene, piperitone,

liquid eudesmol, sesquiterpene.

E. rostrata ........

10T.

0.8955 to

0.9047.

- 11.8° to -14.5°.

1.4839 to 1.4890.

6.1 to 10.6.

1 vol. 80 per cent, to 2 vols. 80 per cent.

Cineol, pinene, phellandrene, cymene, aromadendral.

E. rostrata var. borealis .....

46

0.9065 to 0.9153.

+ 3.5° to + 5.46°.

1.4654

4.8 to 6.6.

1 1/2 to 1 3/4 vols. 70 per cent.

Cireol, pinene, sesquiterpene.

E. rubida ........

15T.

0.9067 to 0.9209.

- 1.1° to + 4.4°

1.4892

3.2 to 12.3

Insoluble

Pinene, cineol, phellandrene, esters, sesquiterpene.

E. Rndderi ........

5T.

0.9042

.8.5°

1.4841

6.1

1 vol. 80 per cent.

Pinene, cymene, aromadendral, cineol.

E. rudis .........

38

0.9068

+ 10.1°

1.4695

3.2

1 vol. 80 per cent.

Pinene, cineol, sesquiterpene, volatile aldehydes.

Cineol Percentages.

Specific Gravity at 15° C.

Optical Rotation

aD.

Refractive

Index at 200 C.

Saponification Number.

Solubility

in Alcohol.

Principal Constituents.

In original oils when first distilled.

in same oils

after about

20 years.

E. Rydalensis .......

8R.

...

08854

+ 24.7°

1.4717

44.0

Insoluble

Pinene, cineol, geranyl-acetate, sesquiterpene.

E. saligna var. pallidivalvis ......

5 to 10T.

...

0.886o to

0.8937.

+ 32.4° to + 34.5°.

1.4703

28.9 to 30.6.

7 vols. 80 par cent. to 9 vols. 80 per cent.

Pinene, esters, amyl-alcohol, alcoholic bodies, sesquiterpene.

E. saligna ........

Traces ...

...

0.8731 to

0.8846.

+ 1.1°

1.4789 to 1.4795.

26.2 to 35.5

10 vols. 80 per cent.

Pinene, cymene, esters, ses-quiterpen .

E. salmonophloia ......

48

...

0.9076

+ 6.3°

1.4681

4.9

3 1/2 vols. 70 per cent.

Pinene, cineol, aromadendral, sesquiterpene.

E. salubris ......

10

...

0.902

.5.8°

1.4784

18.9

1 vol. 80 per cent.

Pinene, cymene, aromadendral, esters, cineol, sesquiterpene.

E. santalifolia ......

12R.

...

0.884

.377°

1.4736

4.9

8 vols. 80 per cent.

Limonene, pinene, cineol, sesquiterpene.

E. Seeana ........

52

58

0.910

+ 5.6°

1.4649

5.5

1 1/2 vols. 70 per cent.

Cineol, pinene, sesquiterpene.

E. siderophloia .........

Traces ..

...

0.9067

+14.5°

1.4943

4

Insoluble

Pinene, phellandrene, alcoholic bodies, sesquiterpene.

E. sideroxylon .......

60

65

0.9189 to 0.9227.

+ 1.4° to + 3.2°.

1.4668

2.5

1 1/4 vols. 70 per cent.

Cineol, pinene, sesquiterpene.

E. Sieberiana .......

8T.

11R.

o.888o

-43.3°

1.4829

2.5

Insoluble

Phellandrene, piperitone, cineol, cymene, sesquiterpene.

E. Smithii .......

70

...

0.9133 to 0.9192.

+ 4.7° to + 6.4°.

1.4616 to 1.4672.

2.4

1 1/4 vols. 70 per cent.

Cineol, pinene, eudesmol, paraffin.

E. squamosa ...

56

70

0.9182

Inactive

1.4635

5.5

1 1/4 vols. 70 per

cent.

Cineol, pinene, aromadendral, sesquiterpene, volatile aldehydes.

E. Staigeriana ........

Nil.

...

0.8715

- 37.53°

1.4814

8.6

8 vols. 80 per cent.

Limonene, citral, geranyl-acetate, free geraniol, sesquiterpene.

E. stellulata ......

5T.

8R.

0.871

- 22.7°

1.4845

2.1

Insoluble

Phellandrene, cineol, sesquiterpene.

E. stricta .......

58

66

0.9246

- 0.35°

1.4654

2.5

1 1/4 vols. 70 per cent.

Cineol, pinene, eudesmol, aromadendral.

E. Stuartiana ........

53

...

0.916

+ 4.8°

1.4652

14.2

1 1/4 vols. 70 per cent.

Cineol, pinene, esters,, sesquiterpene.

Cineol Percentages.

Specific Gravity

at 15 ° C.

Optical

Rotation

aD.

Refractive

Index at 20° C.

Saponification Number.

Solubility

in Alcohol.

Principal Constituents.

In original oils when first distilled.

In same oils

after about

20 years.

E. Stuartiana var. cor data ...

50

...

0.934

+ 4.0°

1.4652

35.2

1 1/2 vols. 70 per cent.

Cineol, pinene, esters, sesquiterpene.

E. tæniola ......

7R.

...

0.8864

- 27.6°

1.4858

3.2

5 vols. 80 per cent.

Phellandrene, cineol, piperi-tone, eudesmol, sesquiter. pene.

E. tereticornis .....

18

...

0.9158 to 0.9128.

-9.4° to - 11.8°

1.4877 to

1.4906.

26.7

1 vol. 80 per cent.

Pinene, cymene, cineol, aromadendral, sesquiterpene.

E. tereticornis var. cineolifera

51 .

...

0.9075 to 0.9112.

+ 0.6° to + 1.5°.

1.4679 to

1.4703.

37

1 1/2 vols. 70 per cent.

Cineol, pinene, aromadendral, sesquiterpene.

E. tesselaris ...

5 to 10T.

...

0.8757

+ 8.6

1.4824

6.2

Insoluble

Pinene. cymene, cineol, sesquiterpene.

E. trachyphloia ......

Traces ...

...

0.8873 to 0.8929.

+ 8.4° to + 9.8°.

1.4844

3.2

Insoluble

Pinene, sesquiterpene, aromadendral.

E. umbra ........

28

35

0.8970

+ 18.7°

1.4639

7.1

5 vols. 80 per cent.

Pinene, cineol, sesquiterpene.

E. uncinata ...

20

...

0.9111

.2.4°

1.4754

13.5

4 1/2 vols. 70 per cent.

Pinene, cineol, cymene, aroma. dendral, alcoholic bodies, esters, sesquiterpene.

E. unialata ..........

54

...

0.9179

+ 3.1°

1.4681

11.1

1 3/4 vols. 70 per cent.

Cineol, pinene, esters, paraffin, sesquiterpene.

E. umigera .........

53

...

0.9088

+ 11.8°

1.4652

18.3

5 vols. 70 per cent.

Cineol, pinene, esters, volatile aldehydes, sesquiterpene.

E. vernicosa ...

52

...

0.9038

+ 11.3°

1.4642

5.9

1 vol. 80 per cent.

Cineol, pinene, volatile aldehydes.

E. viminalis ...

28

50

0.9044 to 0.9162.

+ 37° to + 4.2°.

1.4707 to

1.4798.

6.1 to 9.5.

1 vol. 80 per cent. to 2 vols. 80 per cent.

Pinene, phellandrene, cineol, sesquiterpene.

E. viminalis var. (a) ...

46

58

0.9122 to 0.9141.

+ 6.2° to + 6.7°.

1.4655

3.4 to 4.6.

1 1/2 vols. 70 per cent.

Cineol, pinene, (?) benzalde. hyde, sesquiterpene.

E. virgata ........

Traces ..

...

0.8883 to

0.9154.

- 20.9°

1.4810 to

1.4958.

3.3 to 57.

1 vol. 80 per cent. to 3 vols. 80 per cent.

Phellandrene, eudesmol, cineol, piperitone, sesquiterpene.

E. viridis .......

10T.

10R.

0.9006

- 8.1°

1.4771

57

2 vols. 80 per cent.

Pinene, cineol, aromadendral, sesquiterpene.

Cineol Percentages.

Specific Gravity at 150 C.

Optical Rotation

Refractive

Index at 20° C.

Saponification Number.

Solubility

in Alcohol.

Principal Constituents.

In original oils when first distilled.

In some oils

after about

20 years.

E. vitrea .....

20

22

0.8860

- 30.1°

1.4771

5.4

I vol. 80 per cent.

Phellandrene, cineol, citral, piperitone, sesquiterpene.

E. Wilkinsoniana .......

15T.

2lP.

0.8944

- 21.4°

1.4717

5.0

Insoluble

Pinene, cineol, sesquiterpene.

E. Woollsiana .......

10

...

0.8890 to 0.9051.

- 9.5° to -15.8°.

1.4838

9.1

1 vol. 80 per cent.

Pinene, cineol, cymene, aroma-dendral, sesquiterpene.