14 
was sprayed, while the others arranged in the same way were left for 
control. 
The treatments, sixin number inevery case, were made on the same 
day, the date for each being as follows: 
(1) April 27.—All plats, excepting controls, in Vineyard 1; also plats treated early 
with Bordeaux mixture, full and half strength, in Vineyard 6. 
(2) May 13.—Al] plats same as 1. . 
(3) May 25.—Al1 plats same as 1 and 2. 
(4) June 9.—AI1 plats, including those left in Vineyard 6 for late treatment with 
Bordeaux mixture, full and half strength. 
(5) June 22.—All plats, excepting two in Vineyard 6, treated early with Bordeaux 
mixture, full and half strength. The treatments in the case of these two plats were 
stopped after the fourth spraying, in accordance with plans set forth in question 5. 
(6) July 7.—Same as 5. 
The arrangement of the plats, manner of treatment, and number of 
sprayings are set forth in the diagrams which follow: 
DIAGRAM 2.—Plan of experiment in Vineyard 7. 
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EXPLANATION OF DIAGRAM 2. 
1) Untreated. | (11) Untreated. 
(2) Ammoniacal solution of copper car- | (12) Bordeaux mixture. 
bonate. | (13) Untreated. 
(3) Untreated. (14) Copper acetate. 
(4) Modified eau celeste. (15) Untreated. 
(5) Untreated. (16) Copper chloride mixture. 
(6) Precipitated copper carbonate solu- | (17) Untreated. 
tion. (18) Potassium sulphide solution. 
7) Untreated. 
8) Copper saccharate solution. 
) Untreated. 
(10) Glue mixture. 
(19) Untreated. 
(20 and 21) Sodium hyposulphite solu- 
tion. 
(22) Untreated. 
