472 STANDARD RECBIPTS. 



times with a logwood decoction, prepared as follows: boil one part log- 

 wood with ten parts of water, filter through linen and evaporate at a 

 gentle heat until the volume is reduced to one-half. To every quart of 

 this add from ten to fifteen drops of a saturated solution of indigo, com- 

 pletely neutral. After applying this dye to the wood, rub it with 

 a saturated and filtered solution of verdigris in hot, concentrated acstic 

 acid, and repeat the operation until a black of the desired intensity is 

 obtained. It must always be remembered when handling chemicals that 

 great care must be taken to protect the hands. 



WHITEWASH AND KALSOMINE. 



Out-Door Whitewash. For the covering of out-buildings or fen 

 ces that have commenced to grow rough from age, the action of the 

 weather, or that need a cheap durable covering, this out-door white 

 wash is without an equal. The zinc and salt hardens the wash and 

 prevents it from cracking. 



1 bushel Lime, 



4 pounds Sulphate of Zinc, 



2 pounds Common Salt. 



Slack the lime by pouring boiling water over it in a closed barrel. 

 Put water enough on to cover the lime about a foot deep. Stir continu- 

 ally until it is thoroughly slacked. A cream color may be made of this 

 wash by adding six to eight pounds of yellow ochre. This can be read- 

 ily applied with a whitewash brush. 



United States lyighthouse Whitewash. The keepers of light- 

 houses in the United States were directed by the department of the 

 government having them in charge, to keep the stone and woodwork 

 covered with this whitewash, using it as hot as it was possible. 



1 bushel Unslacked Lime, 

 6 pounds Ground Rioe, 



1 pound Spanish Whiting, 



2 pounds White Glue. 



Slack the lime in boiling water then strain and add one-half bushel of 

 fine salt, which has been dissolved in warm water. Put the ground rice 

 in boihng water and boil to a thin paste. Dissolve the glue and the 

 whiting in warm water. Mix and let stand for a week. Stir thorough- 

 ly and heat sufficient quantity to use. Put on with large painter's or 

 whitewash brush. This will last almost as long as lead and oil. 



