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of copper carbonate in 1J pints of ammonia then diluting to 25 gallons. 
Tile sulphur and sulphosteatite were used as described in the experi¬ 
ment with winter wheat, p. 202. The plants were treated at intervals 
of two, ten, and twenty days, respectively, from the time they appeared 
above ground until they were 8 inches high. Without going into the 
details of the work the results may be briefly summarized as follows: 
(1) Rust appeared more or less on all the plats when the plants were 
from 2 to 5 inches high. 
(2) The fungus was more abundant at first on the untreated plats 
and those dusted with dowers of sulphur and sulphosteatite. Respite 
the treatment, however, rust increased on every plat, and by the time 
the plants were 8 inches high there was no difference between the 
plats as regards the amount of the fungus. 
In all cases where the liquids were used, soap was added to make 
them wet the leaves more thoroughly. It was found, however, ex¬ 
ceedingly difficult to cover the foliage even when the sprayings were 
made every two days. In case of the off-repeated treatments fully 
four fifths of the leaf surface was frequently found wholly unprotected. 
EXPERIMENTS AT MANHATTAN, KANS. 
Mr. J. F. Swingle, to whom the work at this place was entrusted, 
conducted the experiments on his farm a mile and a half from the State 
Agricultural College. Early in September, 1891, Mr. Swingle was 
requested to select from an average field of wheat a block containing 
8,000 to 10,000 square feet. This was done, and on October 13 the 
ground was platted. Nineteen plats were laid out, each 20 feet square, 
in 4 rows, extending east and west. The plat in the southeast corner 
was cut out in order to give the necessary number. The accompanying 
diagram shows the arrangement of the plats, and the explanation gives 
the treatment each received: 
Diagram 1. — Showing plan of experiment at Manhattan, Kano. 
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