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.