BORDEAUX MIXTURE. 



Blue vitriol (copper sulphate), . . . . . i lb. 



Fresh lime . . . i lb. 



Water, 12 gals. 



or 



Blue vitriol 4 lbs. 



Fresh lime, 4 lbs. 



Water, 50 gals, or i barrel 



Dissolve the blue vitriol in several gallons of water, say 

 one fourth the quantity to be used, or it may first be 

 dissolved in a smaller quantity of hot water and then several 

 gallons of cold water added. Slake the lime and make a 

 thin whitewash, then pour this slowly into the solution of 

 vitriol, stirring thoroughly ; then add water sufficient blue to 

 make up the required quantity. Before using the mixture 

 it should be strained through sacking or a sieve of some 

 kind, with about a 1-16 in. mesh, to remove the coarser 

 particles, which are liable to clog the nozzle of the pump. 



Iron vessels should not be used in preparing any of these 

 mixtures. 



SOLUTION OF COPPER CARBONATE IN AMMONIA. 



Copper carbonate, ......... 5 oz. 



Ammonia (strong), 3 to 5 pints 



Water, 45 gallons 



Mix the copper carbonate with about a pint of water, and 

 then add the ammonia. If the three pints are not sufficient, 

 add more until the carbonate is all or nearly all dissolved ; 

 then add water to make up 45 gallons or a barrel. 



MODIFIED EAU CELESTE. 



Blue vitriol, ,4 lbs. 



Sal soda (sodium carbonate), ....... 5 lbs. 



Ammonia (strong), . . , 3 pints 



Water, 45 gallons 



Dissolve the blue vitriol and soda separately in two or 

 three gallons of water; mix the two solutions, stirring 

 thoroughly; then add the ammonia, and dilute with water 



