140 
hition costing 1G.G cents being used. The expense of application was 
28 cents, making a total of 44.G cents, or 8.92 cents per tree. 
Results. —On October 8 the treated trees were in good foliage, while 
the adjacent untreated trees were leafless. 
VII. Ammoniac al solution. — Five late treatments to twelve Duchess 
dwarfs. —Treatments made May 28, June 10, and 23, July 8 and 19, 
58 gallons of the liquid costing 13.5 cents being used. The cost of 
labor was 42.5 cents, making a total of 8G cents or practically 7 cents 
per tree. 
Results. —On September 24, the foliage was only partially removed 
by the disease and the contrast, though not striking was quite appar¬ 
ent. On October 8 the contrast was much more marked. 
VIII. Ammoniacal solution. — Six treatments to three trees of Bart¬ 
lett dwarfs and four of Bartlett standards. —Dates of treatments as in 
IV, G7 gallons being used at a cost of 50.2 cents. The cost of appli¬ 
cation was 58 cents, making a total of $1.08, or 15.4 cents per tree. 
Results. —The standards showed the effects earliest and most mark¬ 
edly, but both held their foliage well into October while surrounding 
unsprayed trees dropped their leaves before the last of August. 
IX. Mixture No. 5.— Six treatments to five trees of Bartlett dwarfs. — 
Applications made the same as in IV, 3G gallons, costing 43 cents, be¬ 
ing used. The cost of application was 45 cents, making the total ex¬ 
pense 17.G cents per tree. 
Results. —The foliage was badly burned and many leaves dropped in 
consequence, but the leaf-blight was effectively prevented. 
X. Copper acetate.— Three treatments to two Bartlett standards .— 
The applications were made May 28, June 23, and July 8, using a solu¬ 
tion of 3 ounces of the acetate to 6 gallons of water. Nine gallons of 
the mixture, costing 8.G cents, were applied at an expense of 10 cents 
for spraying. The total cost therefore was 18.G cents, or 9.3 cents per 
tree. 
Results. —On October G the foliage was in a fair state of preservation, 
while adjacent untreated trees were leafless. Xo noticeable damage was 
done to the foliage, only an occasional leaf being injured. 
XL Copper acetate. — Six treatments to five trees of Bartlett 
dwarfs. —Dates of treatment as in Xo. IV. Forty gallons of fluid were 
used, 4 gallons of a strong mixture (4 pounds to 22 gallons), and 3G of 
a modified (12 ounces in 24 gallons) solution, at a total cost of G2 cents, 
or 12.4 cents per tree. The cost of application amounted to 45 cents, or 
9 cents per tree, making the total expense per tree 21.4 cents. 
Results. —The leaves were severely injured, many of them falling long 
before the proper time. There is no doubt as to the fungicidal prop¬ 
erties of this preparation; its use, however, can not at present be 
recommended. 
XII. Copper carbonate in suspension. — Six treatments to five 
trees of Bartlett dwarfs.— The solution made by mixing 3 ounces of 
