217 
Table 7. —Showing manner of treatment of plats in Experiment A, at Roclcport, Kans .— 
Continued. 
Plat. 
Kind of treatment. 
30 and 95 
31 and 96 
32 and 97 
32^ and 98 
33 and 99 
34 and 100 
35 and 101 
36 and 102 
37 and 103 
38 and 104 
39 and 105 
40 and 106 
41 and 107 
42 and 108 
43 and 109 
44 and 110 
45and lit 
46 and 112 
47 and 113 
48 and 114 
49 and 115 
50 and 116 
51 and 117 
52 and 118 
53 and 119 
54 and 120 
55 and 121 
56 and 122 
57 and 123 
58 and 124 
Seed immersed for 24 hours in a solution of potassium sulphide, 1 ounce to 1 gallon 
of water. 
Untreated. 
Seed immersed for 24 hours in a solution of potassium sulphide, 4 ounce to 1 gallon 
of water. 
Untreated. 
Untreated. 
Seed immersed lor 24 hours in a 1:1000 solution of corrosive sublimate. 
Untreated. 
Plants sprayed every 10 days with Bordeaux mixture. 
Untreated. 
Plants sprayed every 10 days with ammoniacal solution of copper carbonate. 
Untreated. 
Plants sprayed every 10 days with potassium sulphide solution, 2 ounces to 3 
gallons of water. 
Untreated. 
Plants sprayed with Bordeaux mixture every 20 days. 
Untreated. 
Plants sprayed with ammoniacal solution of copper carbonate every 20 days. 
Untreated. 
Plants sprayed with potassium sulphide solution, 2 ounces to 3 gallons of water 
every 20 days. 
Untreated. 
Seed, soil, and spraying treatments. Seed immersed in Bordeaux mixture 24 
hours; soil treated with 5 pints of Bordeaux mixture to 25 feet of row; plants 
sprayed with Bordeaux mixture every 10 days. 
Untreated. 
Seed, soil, and spraying treatments, with potassium sulphide solution. 2 ounces to 
3 gallons of water. Seed immersed for 24 hours; soil treated with 5 pints to 25 
feet of row ; plants sprayed every'10 days. 
Untreated. 
Seed, soil, and spraying treatments. Seed immersed for 24 hours in ammoniacal 
solution of copper carbonate, plants sprayed every 10 days with the same 
preparation. 
Untreated. 
Seed and spraying treatments. Seed immersed for 15 minutes in water at 133° F.; 
plants sprayed every 10 days with Bordeaux mixture. 
Untreated. 
Seed and soil treatment. Seed immersed for 15 minutes in water at 133° F.; soil 
treated with lime and sulphur equal parts, 5 ounces to 25 feet of row. 
Untreated. 
Seed and soil treatment. Seed immersed in water at. 133° F. for 15minutes; soil 
treated with 2£ ounces ferrous sulphato to 25 feet of row. 
59 and 125 
60 and 126 
61 and 127 
62 and 128 
63 and 129 
64 and 130 
65 and 131 
)■ Reserved for spring treatment. 
The Bordeaux mixture and ammoniacal solution used throughout the 
foregoing experiment were full strength, i. e ., containing, respectively, 6 
pounds of copper and 4 pounds of lime to 22 gallons of water, and 3 
ounces of copper basic carbonate dissolved in 1£ pints of ammonia 
to 22 gallons of water. Soap was not used with any of the prepara¬ 
tions. All of the soil and seed treatments were made before the grain 
was planted. Spraying began on October 28, and with the exception 
of three interruptions caused by cold weather and snow, was continued 
at the regular ten and twenty-day intervals until harvest. No rust ap¬ 
peared until May 24, but from this time on it increased very rapidly, 
every plat in the entire tract being attacked to a greater or less extent. 
Upon examination the fungus proved to be Puccinia rubigo-vera , the 
common species of western Kansas. In accordance with directions 
from the Department, Mi\ Bartholomew made careful notes on the 
