211 
count of tlie affected plants, but this was found to be out of the ques¬ 
tion, as it would have involved the counting of almost every stalk. 
When it was found that the rust was so widely distributed, a count of 
only a few of the more promising looking plats was made. The data 
on the amount of Septoria , yellow foliage, etc., was obtained by care¬ 
fully examining the plats and marking the results in percentages. It 
is hardly necessary to give in detail the figures obtained as a result of 
the foregoing observations. Summarizing the data, it may be stated as 
follows: 
(1) The general condition of all the original plats, with the exception 
of those treated with Bordeaux mixture, ammoniacal solution of copper 
carbonate, ferrous ferrocyauide, and copper borate, was the same, aver¬ 
aging 55 to 75 when compared with wheat in the field taken as 100. The 
poor condition of the wheat, treated as well as untreated, when compared 
with the ordinary field crop, was due to a number of causes, the most 
important being the omission of fertilizers in planting and the thinness 
of the plants due to necessary walks, alleys, etc. The condition of the 
plats sprayed with Bordeaux mixture, ammoniacal solution of copper 
carbonate, ferrous ferrocyauide, cupric ferrocyauide, and copper borate 
averaged 90 to 100, when compared with the field crop. 
(2) The general condition of all the duplicate plats was 10 to 20 
points lower than the original. 
(3) There was no marked difference in the height of the plants in 
the various plats, the average for the originals being 18 to 30 inches 
and the duplicates 14 to 24 inches. 
(4) The amount of rust on the various plats, as nearly as could be 
determined, was the same, fully 90 per cent of the plants in every case 
being affected. An actual count of the rusted plants in 13 plats gave 
the following results: 
Table 4 .—Showing actual number of rusted plants on 14plats. 
Plat. 
Method of treating. 
Number 
of plantsi 
showing 
rust. 
1 
Untreated. 
1,908 
2, 500 
2 
Soil treatment with sulphur. 
3 
Untreated. 
1, 910 
4 
Soil treatment with sulphur...-. 
2, 368 
5 
Untreated. 
2,196 
<; 
Soil treatment with sulphur. 
1,741 
2, 716 
40 
Sprayed with Bordeaux: mixture every 10 days. 
41 
Untreated.-. 
2, 568 
42 
Sprayed with ammoniacal solution every 10 days. 
L 247 
44 
46 
Sprayed with potassium sulphide solution every 10 days. 
Sprayed with Bordeaux mixture every 20 days . . . 
2, 729 
2, 456 
48 
Sprayed with ammoniacal solution every 20 days . 
2, 672 
50 
52 
Sprayed with cupric ferrocyauide mixture everv 10 days _ 
2, 736 
2,548 
Sprayed with ferrous ferrocyauide mixture every 10 days- 
Each of the foregoing plats contained from‘2,600 to 3,400 plants. 
(5) Septoria graminum occurred upon all the plats, from 5 to 10 per 
cent of the foliage being affected. It was worse where the plants were 
thick, and was almost entirely absent where, from the effects of the seed 
treatments and other causes, the plants were thin. Spraying with 
