96 HORTICULTURIST'S RULE-BOOK. 



Use an iron kettle over a gentle fire. Apply with a brush, 

 hot. 

 FOR PAPER. 



11. Dissolve If pounds of white soap in 1 quart of 

 water; in another quart of water dissolve 1^ ounces of gum 

 arabic and 5 ounces of glue. Mix the two liquids, warm 

 them and soak the paper in it and pass through rollers, or 

 simply hang it up to dry. 



To PREVENT METALS FROM RUSTING. 



12. Melt together 3 parts of lard and 1 part of powdered 

 resin. A very thin coating applied with a brush will keep 

 stoves and grates from rusting during summer, even in 

 damp situations. A little black lead can be mixed with 

 the lard. Does well on nearly all metals. 



TO PREVENT RUSTING OF NAILS, HlNGES, ETC. 



13. 1 pint of linseed oil, 2 ounces black lead ; mix to- 

 gether. Heat nails red-hot and dip them in. 



AMOUNT OF PAINT REQUIRED FOR A GIVEN SURFACE. It is 

 impossible to give a rule that will apply in all cases, as the 

 amount varies with the kind and thickness of the paint, 

 the kind of wood or other material to which it is applied, 

 the age of the surface, etc. The following is an approxi- 

 mate rule : Divide the number of square feet of surface by 

 200. The result will be the number of gallons of liquid 

 paint required to give two coats ; or divide by 18, and the 

 result will be the number of pounds of pure ground white 

 lead required to give three coats. 

 5. Glues. 



LIQUID GLUE. 



1. Dissolve 2 pounds of best pale glue in 1 quart of 

 water in a covered vessel, placed in a hot-water bath ; when 

 cold, add to it 7 ounces of commercial nitric acid. When 

 cold put in bottles. 



2. Finest pale orange shellac, broken small, 4 ounces ; 

 methylated spirit, 3 ounces ; put in a warm place in a closely 

 corked bottle until dissolved. Should have the consistency 

 of molasses. Or, borax, 1 ounce ; water, pint ; shellac as 



