Spraying Apple Obohaeds in a "Wet Season. 387 



ceding. Th.e quantity corresponds to about ten grams of freshly 

 burned lime. The liquid was filtered after one-half hour. 



''Metallic copper per litre of the solution, 0.0105. 



" Copper sulphate crystals per litre, 0.0412. 



" Preparation of the mixture. — Sulphate of copper, twenty grajns ,; 

 slaked lime, thirty grams. Prepared as above. The liquid was 

 filtered after one-half hour. 



" Metallic copper per litre of the solution, 0.0095. 



'Copper sulphate crystals per litre, 0.0372. 



•' Preparation of the mixture. — Sulphaie of copper, twenty grams; 

 quick-lime, ten grams. The lime was added after having been 

 completely slaked in water. Liquid filtered after one-half hour. 



'' Metallic copper per litre of the solui ion, 0.005. 



'* Copper sulphate crystals per litre, 0.0106. 



'' Preparation of the mixture. — Sulphate of copper, twenty groins; 

 quick-lime, ten grams. Sufficient water was used to give the 

 mixture the consistency of thick milk. Liquid filtered after one- 

 half hour. 



•' Metallic copper per litre of the solution, 0.003.S. 



'•Copper sulphate crystals per litre, 0.0149. 



"IL BORDEAUX MIXTURE MADE WITH CAUSTIC LIME. 



"Preparation of the mixture. — Sulphate of copper, twenty grams ; 

 caustic lime in lumps (pietra), ten grams. The lime was in water* 

 two hours and was then added to the copper solution. Liquid 

 filtered after one hour. 



"Metallic copper per litre of the solution, 0.011. 



" Sulphate of copper crystals, 0.0431. 



" Preparation of the mixture. — Sulphate of copper, twenty 

 grams; caustic lime as above, ten grams. The lime was in water 

 seventen hours and then the copper solution was added to it. 

 Liquid filtered after one hour. 



" Metallic copper per litre of the solution, 0.0275. 



" Sulphate of copper crystals per litre, 0.1058. 



" Preparation of mixture. — Sulphate of copper, twenty grams ; 

 caustic lime as above, ten grams. The lime was pulverized and 



