206 
conducted all the experiments from beginning to end. The vineyard, 
of about 2£ acres, contained something over 1,400 Norton vines, these 
being in their tenth year. This area was divided into sixteen sections; 
but as two of these were treated with remedies with which we are not 
at present concerned, they will be omitted altogether. The fourteen 
sections were treated as follows: 
Section 1.—Bordeaux mixture a, containing G pounds of sulphate of 
copper and 4 pounds of lime to 22 gallons of water. 
Section 2.—Eau celeste, containing 1 pound of sulphate of copper, 1£ 
pints of aqua ammonia, and 22 gallons of water. 
Section 3.—No treatment. 
Section 4.—Bordeaux mixture b, containing 4 pounds of sulphate of 
copper, 2 pounds of lime, and 22 gallons of water. 
Section 5.—Eau celeste ft, containing 2 pounds of sulphate of cop¬ 
per, 2 pounds of carbonate of soda, 1J pints of aqua ammonia, and 22 
gallons of water. 
Section 6 .— No treatment. 
Section 7.—Ammoniacal solution of carbonate of copper, containing 
carbonate of copper 3 ounces, aqua ammonia 1 quart, water 22 gallons. 
Section 8.-—Bordeaux mixture a, applied in a different part of the 
vineyard from section 1. 
Section 9.—No treatment. 
Section 10.—Bordeaux mixture Z>, applied in a part of the vineyard re¬ 
mote from section 4. 
Sectio7i 11.—Bordeaux mixtures, applied some distance from 1 and 8. 
Section 12.—Bordeaux mixture c, containing copper two pounds, lime 
1 pound, water 22 gallons. 
Section 13.—-Ammoniacal solution of carbonate of copper apnlied at 
some distance from section 7. 
Section 14.—Bordeaux mixture d, containing 3 pounds of sulphate of 
copper, 1 pound of lime, and 22 gallons of water. 
Sections 10 and 11.—Were treated in March with a simple solution of 
sulphate of copper, 1 pound of the copper to 25 gallons of water. 
With the exception of 8 all the sections were sprayed the first 
time on May 18, the second on June 3, third on July 23, fourth on 
August 3, and fifth on August 1G. Section 8 received its first applica¬ 
tion on the Gtli of June, this being the experiment designed to test the 
effect of late spraying. On the 1st of October the fruit on all the sec¬ 
tions was gathered and carefully weighed, with the following results: 
