84 



Tree No. i^. — This tree was thirteen feet hig-h, with a six- 

 inch trunk and a sixteen-foot top. It was in good condition, but 

 badly infested by the scale. It was treated but once with water, 

 thirty gallons being- applied seven days after the inseciicide, agree- 

 ing- in this respect with No. (> of Lot 1. Forty-nine per cent, of 

 the scales were alive in the beginning. Eighty-three per cent, of 



Lot W . Spravkd with Limf:, Sui. thur, and Blue \'itriol, March 5. 



these had been killed by the fifth day, and, according to the sample 

 count made, 96 per cent, by the twenty-second day. By May 12, 

 the percentage of destruction was 99.6. August 20, one hundred 

 scales examined ; none alive. 



