A Bulletin on Orchard Practice 23 



the best results great care must be taken. After placing the 

 lime in the barrel, add enough water to wet it thoroughly, and 

 when the lime begins to dry and crumble add more water, be- 

 ing careful not to add enough to chill it. By pouring on a 

 sufficient amount of water to keep the lime from burning a 

 smooth paste is formed, free from grit and small lumps, pro- 

 vided a good quality of lime has been used. Having slaked the 

 lime, add enough water to bring the mass up to 25 gallons. 

 Stir the lime thoroughly through the water and it is tjien 

 ready for mixing with the blustone solution. Two men are 

 required to do this mixing properly. The solutions of lime 

 and bluestone should be poured together slowly, and in such 

 a manner that the solutions will mix in falling. When mixed, 

 stir thoroughly, using a wide, wooden paddle. After strain- 

 ing, the mixture is ready for use. 



There is some danger of not having sufficient lime to unite 

 chemicallv with all the bluestone it is best to test the mix- 

 ture to see if sufficient lime has been used. Fill a saucer with 

 the solution and add to it a few drops of a solution of ferro- 

 cyanide of potash (one ounce to a half pint of water). If 

 a brown color appears, add more lime paste to the mixture, 

 stir in thoroughly and test a second time. Add lime until 

 the brown color does not appear when test is made. 



SULPHUR LIME FORMULA. 



Lime 1 pound 



Sulphur 1 pound 



Water 3 or 4 gallons 



First slake the lime, using only enough water to keep it 

 moist so it will all dissolve and not burn. Reduce to a thick 

 paste, then add enough water to make a thin liquid. Put in 

 the sulphur, stir it thoroughly before cooking and occasion- 

 ally while cooking. If the cooking vat is large enough all the 

 water can be added at first, but if not it can be put in later. 

 To boil constantly for one hour is enough, as it is claimed 

 it can be cooked too long. When the sulphur is all dissolved 

 the liquid will be of an amber color. It should be poured into 



