37 
for its inaction. The fact that the sprayed part, when treated with this 
substance, showed so much greater percentage of injury than the un¬ 
sprayed throws a possible doubt over the whole trial, for we can not 
suppose that this compound of sulphur could have favored the growth 
of the fungus. 
The results of these tests appear to warrant the following conclusions: 
First. That soda hyposulphite and potassium sulphide, as applied, 
proved beneficial in preventing injury from the fungus. This conclu¬ 
sion is strengthened by the results secured in previous experiments al¬ 
ready cited. 
Second. The tests do not prove that the greater amount of sulphur 
added in the potassium sulphide as compared with the soda hyposul¬ 
phite rendered this substance the more effectual, though there are in¬ 
dications in this direction. 
Third. That calcium sulphide is of little or no value for the purpose 
used. 
Fourth. That while further experiments are needed to furnish data 
from which we may compute the actual benefits conferred by the treat¬ 
ments, the indications are that the good accomplished was sufficient to 
warrant the slight cost of the materials in the case of orchardists who 
spray their trees for the codling moth. 
NOTES. 
By B. T. Galloway. 
SULPHURET OF POTASSIUM FOR BITTER ROT OF THE APPLE. 
Judging from the reports received bitter rot of apples (Glceosporium 
fructigenum) is on the increase. Last year (1888) Mr. J. W. Beach, of 
Batavia, Ark., made some experiments with the view of finding a rem¬ 
edy for this disease which are not without interest. We wrote Mr. 
Beach early in March, 1888, requesting him to spray the fruit five or six 
times during the season with a solution of sulphuret of potassium, 
one-half an ounce of the potassium to the gallon of water. In accord¬ 
ance with our instructions the first application was made when the ap¬ 
ples were about one inch in diameter, and the Lewis Combination Force 
Pump was used for the purpose. The second application was made 
three weeks later, and was followed by a third in about a month. Up 
to the time of the third application very little rot had appeared on the 
sprayed apples, while those not sprayed rotted badly. Unfortunately 
at this time the supply of the fungicide became exhausted and nearly 
two months elapsed before enough was obtained to make the fourth ap¬ 
plication. During this interval much of the sprayed fruit which had 
hitherto remained healthy fell a prey to the disease, and, in spite of all 
treatment, this continued until the fruit was harvested. Mr. Beach, 
however, has full confidence in the remedy and says that during the 
