(See also Insecticides.)

Sticky Fly-Papers

The sticky material applied to the paper is the following:

I

Boiled linseed oil. 5 to 7 parts

Gum thus....... 2 to 3 parts

Non-drying oil.. . 3 to 7 parts

For the non-drying oil, cottonseed, castor, or neatsfoot will answer—in fact, any of the cheaper oils that do not readily dry or harden will answer. The proper amount of each ingredient depends upon the condition of the boiled oil. If it is boiled down very stiff, more of the other ingredients will be necessary, while if thin, less will be required.

II

Rosin............. 8 parts

Rapeseed oil....... 4 parts

Honey............ 1 part

Melt the rosin and oil together, and incorporate the honey. Two parts of raw linseed oil and 2 parts of honey may be used along with 8 parts of rosin instead of the foregoing. Use paper already sized, as it comes from the mills, on which to spread the mixture.

III

Castor oil.......... 12 ounces

Rosin............. 27 ounces

Melt together and spread on paper sized with glue, using 12 ounces glue to 4 pints water.

IV

Rosin............. 8 ounces

Venice turpentine... 2 ounces

Castor oil.........'. 2 ounces

Spread on paper sized with glue.

Poisonous Fly-Papers

I

Quassia chips..... 150 parts

Chloride of cobalt.. 10 parts

Tartar emetic..... 2 parts

Tincture of long pepper (1 to 4) . . 80 parts

Water............ 400 parts

Boil the quassia in the water until the liquid is reduced one-half, strain, add the other ingredients, saturate common absorbent paper with the solution, and dry. The paper is used in the ordinary way.

II

Potassium bichromate 10 ounces

Sugar............ 3 drachms

Oil of black pepper.. 2 drachms

Alcohol .......... 2 ounces

Water............. 14 ounces

Mix and let stand for several days, then soak unsized paper with the solution.

III

Cobalt chloride..... 4 drachms

Hot water......... 16 ounces

Brown sugar....... 1 ounce

Dissolve the cobalt in the water and add the sugar, saturate unsized paper in the solution, and hang up to dry.

IV

Quassia chips..... 150 parts

Cobalt chloride.... 10 parts Tartrate antimony. 2 parts Tincture of pepper. 80 parts

Water............ 400 parts

Boil chips in the water until the volume of the latter is reduced one-half, add other ingredients and saturate paper and dry.

Fly-Poison

Pepper............     4 ounces

Quassia...........     4 ounces

Sugar.............     8 ounces

Diluted alcohol.....     4 ounces

Mix dry and sprinkle around where the flies can get it.

Non-Poisonous Fly-Papers

I

Mix 25 parts of quassia decoction (1:10) with 6 parts of brown sugar and 3 parts of ground pepper, and place on flat dishes.

II

Mix 1 part of ground pepper and 1 part of brown sugar with 16 parts milk

or cream, and put the mixture on flat plates.

III

Macerate 20 parts of quassia wood with 100 parts of water for 24 hours, boil one-half hour, and squeeze off 24 hours. The liquid is mixed with 3 parts of molasses, and evaporated to 10 parts. Next add 1 part of alcohol. Soak blotting paper with this mixture, and put on plates.

IV

Dissolve 5 parts of potassium bichromate, 15 parts of sugar, and 1 part of essential pepper oil in 60 parts of water, and add 10 parts of alcohol. Saturate unsized paper with this solution and dry well.

V

Boil together for half an hour

Ground quassia wood..........     18 pounds

Broken colocynth.. 3 pounds

Ground long pepper............ 5 pounds

Water............     80 pounds

Then percolate and make up to 60 pounds if necessary with more water. Then add 4 pounds of syrup. Unsized paper is soaked in this, and dried as quickly as possible to prevent it from getting sour.

VI

Mix together

Ordinary syrup... . 100 ounces

Honey........... 30 ounces

Extract of quassia wood.......... 4 ounces

Oil of aniseed, a few drops.