| V.— | Camphor | 1 ounce |
|---|---|---|
| Carbolic acid (75 per cent) | 12 ounces | |
| Aqua ammonia | 10 drachms | |
| Soft salt water | 8 drachms |
To be diluted when required for use.
| VI.— | Heavy tar oil | 10 gallons |
|---|---|---|
| Caustic soda dissolved in 5 gallons water 600° F | 30 pounds |
Mix the soda lyes with the oil, and heat the mixture gently with constant stirring; add, when just on the boil, 20 pounds of refuse fat or tallow and 20 pounds of soft soap; continue the heat until thoroughly saponified, and add water gradually to make up 40 gallons. Let it settle; then decant the clear liquid.
Disinfecting Fluids Or Weed-killers.—
I.—Cold water, 20 gallons; powdered rosin, 56 pounds; creosote oil, 40 gallons; sulphuric acid, 1/2 gallon; caustic soda lye, 30° B., 9 gallons.
Heat water and dissolve the rosin; then add creosote and boil to a brown mass and shut off steam; next run in sulphuric acid and then the lyes.
| II.— | Water | 40 gallons |
|---|---|---|
| Powdered black rosin | 56 pounds | |
| Sulphuric acid | 2 1/2 gallons | |
| Creosote | 10 gallons | |
| Melted pitch | 24 pounds | |
| Pearlash boiled in 10 gallons water | 56 pounds |
Boil water and dissolve rosin and acid; then add creosote and boil well again; add pitch and run in pearlash solution (boiling); then shut off steam.
III. (White).—Water, 40 gallons; turpentine, 2 gallons; ammonia, 1/2 gallon; carbolic crystals, 14 pounds; caustic lyes, 2 gallons; white sugar, 60 pounds, dissolved in 40 pounds water.