apple, pear, peach, plum, cherry, quince, apricot and nectarine. 

 They ranged in size from nursery stock set the fall before to trees 

 twenty feet or more high and spreading twenty-five feet. 



Good's Caustic Potash Whale-oil Soap No. 3 at the rate of two pounds 

 per gallon of water ; Bowker's Tree Soap used at the same strength ; 

 Good's Caustic Potash Whale-oil Tobacco Soap at the same 

 strength; Crude Petroleum mechanically emulsified with water, at 

 percentages varying from 1 5^0 to 45''/ ; Kerosene emulsified in the 

 same way, at percentages varying from i8fc to 387^ ; and Lime, Sul- 

 fur and Salt (lime 40 lbs., Sulfur 20 lbs.; Salt 15 lbs.; water to 

 make 60 gallons) were the chief materials tested, though other things 

 were tried to some extent. Of these the Lime, Sulfur and Salt Mix- 

 ture gave the best results, followed by Bowker's Tree Soap. Crude 

 Petroleum and Kerosene were quite satisfactory so far as killing the 

 scale was concerned, but it has since been shown that after being 

 sprayed with these oils a few times the trees are liable to be injured. 



The Lime, Sulfur and Salt treatment gave such good results that 

 it seemed well to experiment farther with it and study its properties. 

 Accordingly a quantity of this substance was prepared and placed in 

 the hands of Dr. Chas. Wellington of the Agricultural College, for 

 qualitative and quantitative analysis, and to his kindness I am 

 indebted for the following statement : 



Composition of the Lime, Sulfur and Salt Wash. 



