223 
In addition to the foregoing there was one soil and seed treat¬ 
ment with Bordeaux mixture, the seed being immersed for twenty-four 
hours in the preparation and the soil treated with one-half gallon of 
the mixture to 20 feet of row. For the experiment as a whole 100 
plats, each 3 by 15 feet, were used. Fifteen of the plats Avere planted 
with wheat and the same number with oats. For seed, White Medi¬ 
terranean wheat, and Black Winter oats were used, each being planted 
on April 8, 1892. On June 4 Puccinia rubigo-vera was noticed on a 
few plants of wheat, thereupon each plat received the following treat¬ 
ment : 
Table 10. —Showing hind of treatment given each plat in Experiment B. 
Plat. 
Kind of treatment. 
1 and 1 
26 and 26 
2 and 2 
27 and 27 
3 and 3 
28 and 28 
4 and 4 
29 and 29 
5 and 5 
30 and 30 
6 and 6 
31 and 31 
7 and 7 
32 and 32 
8 and 8 
33 and 33 
9 and 9 
34 and 34 
10 and 10 
35 and 35 
11 and 11 
38 and 38 
12 and 12 
24 and 24 
No treatment. 
Sprayed with basic cupric acetate mixture. 
No treatment. 
Sprayed with copper borate mixture. 
No treatment. 
Sprayed with cupric ferrocyanide mixture. 
No treatment. 
Sprayed with cupric hydroxide mixture. 
N o treatment. 
Sprayed with tricupric oithophosphate mixturo. 
N o treatment. 
Sprayed with cupric polysulphide mixture. 
No treatment. 
Sprayed with ferrous ferrocyanide mixturo. 
No treatment. 
Sprayed with iron borate mixture. 
No treatment. 
Sprayed with iron sulphide mixture. 
No treatment. 
Sprayed with zinc borate mixture. 
No treatment. 
Sprayed with Bordeaux mixture. 
No treatment. 
Soil and seed treatment with Bordeaux mixture. 
Additional sprayings were made on June 6, 16, and 20, and July 5, 
respectively. The oats were harvested on July 16 and the wheat two 
days later. Mr. Bartholomew furnished the following notes on the 
effect of each treatment, the numbers given being those of the prep¬ 
aration and not the plats: 
The condition of the untreated plats with respect to rust was very similar to those 
in Experiment A, all being quite uniformly affected with the fungus. The total 
yield for the 26 untreated plats Avas as follows: 
Straw and grain...pounds.. 89£ 
Cleaned grain.do- 13f 
Straw and grain per plat..do- 34 
Cleaned grain per plat..ounces.. 
No. 26. —Basie cupric acetate mixture. Almost entirely free from rust; yield con¬ 
siderably above the average, viz, 4 pounds, and 4 pounds, 10 ounces per plat. The 
adjoining untreated plats were covered with red rust from bottom to top. 
No. 27. —Copper borate mixture. Very similar to 26, being free from rust and the 
yield above the average. 
No. 28.. —Cupric ferrocyanide mixture. BeloAv the average in yield, being injured 
by the fungicide; straw and grain light; can not recommend this preparation. 
