Dose, if repeated 10 - 30 min.; 0.6 - 2 c.c: for a single administration, 46 - 60 min.; 2.5 - 4 c.c. A colourless, very volatile, inflammable liquid, with a heavy, highly inflammable vapour, which forms an explosive mixture with air. Boiling-point lower than 105° F. (40.5° C). Entirely miscible with alcohol, chloroform and oils. Should contain 92% of ethyl oxide (C2H5)20, the remainder being water and ethyl alcohol.

1Ęther Purificatus. Purified Ether. Ether from which the water and alcohol have been removed. Used for producing anaesthesia.

1spiritus Athens

Dose, if repeated, 20 - 40 min.; l 1/2 - 2 1/2 c.c: for a single administration, 60 - 90 min.; 4-6 c.c. - 35; Alcohol, 70.

1Spiritus Ętheris Compositus (Hoffmann's Anodyne). Dose, if repeated, 20-40 min.; 1 1/2 - 2 1/2 c.c: for a single administration, 60 - 90 min.; 4 - 6 c.c.

- 13.75; Alcohol, 195; Sulphuric Acid, 90; Distilled Water, 3.75; Sodium Bicarbonate, sufficient to almost neutralize the acid.

Aether Aceticus. Acetic Ether. Dose, if repeated, 20 - 40 min.; 1 1/2 to 2 1/2 c.c: for a single administration, 60 - 90 min.; 4 - 6 c.c. An ethereal liquid consisting of ethyl acetate, C2H5COO. CH3, together with small amounts of ethyl alcohol. A colourless liquid with a fragrant odour. Soluble, 1 in 10 of cold water, and in alcohol.

Aetheris Nitrosi (See Spiritus Aetheris Nitrosi, p. 96).

Alcohol Absolutum. Alcohol Absolute. (Ethyl Alcohol.) C2H5OH. A very volatile and hydroscopic liquid, containing not more than 1% of water.

Spiritus Rectificatus. Alcohol (96%). Rectified Spirit.) A colourless, volatile liquid with an agreeable odour and a burning taste. Contains 90% by volume, 85.65% by weight, of ethyl alcohol, C2H5OH, the remainder being water.

The official dilutions are,- 70% Alcohol. - 77.77; Water, 24.16.

- 60% Alcohol. - 66.66; Water, 35.78. - 45% Alcohol. - 50; Water, 52.66. - 20% Alcohol - 22.22; Water, 79.10.

(In all cases 100 volumes will be produced.)

Spiritus Vini Gallici. Brandy. A spirituous liquid distilled from wine and matured by age, containing not less than 36.5% by weight of ethyl alcohol.

3Mistura Spiritus Vini Gallici. Dose, 1 - 2 fl. oz.; 30 - 50 c.c. - 40; Cinnamon Water, 40; Sugar, 5; Yolks of Eggs, 10, by volume.

Vinum Xericum. Sherry. A Spanish wine containing not less than 13.5% of ethyl alcohol.

Vinum Aurantii (see Aurantium, p. 39).