New YorK AGRICULTURAL EXPERIMENT STATION. 403 
mated at $18 per acre. This is an item of much less importance 
however, than the difference in the market value of the fruit 
which, as before stated, Mr. Bradley estimated at 25 cents to 
50 cents per barrel in favor of the trees not sprayed in bloom. 
The average yield of the trees sprayed in bloom was 12.95 
busheis. With 48 trees per acre this would amount to 621.6 
bushels or 207.2 barrels per acre. A loss of 25 cents per barrel 
on this number of barrels amounts to $51.80, which combined 
with the apparent loss in yield of $18 makes the total loss in 
this experiment at the lowest estimate about $70 per acre. This 
estimate is presented here to show the apparent loss from spray- 
ing in bloom in this particular test. It is given as simply one 
item of evidence bearing upon the general subject under investi- 
gation. It is not supposed that it furnishes an accurate stand- 
ard for estimating the probable loss from such treatment in 
other localities and seasons. As stated before it is not clear 
whether the fruit in Row 4 was smaller than that in Rows 2 and 
3 because of the treatment or because of the location of the 
trees. 
EXPERIMENTS AT HILTON. 
In the orchard of Messrs. John B. Collamer and Son, Hilton, 
Monroe County, several varieties were treated. These trees 
were planted about 20 years ago and about 10 years ago were 
top-worked. They average from 17 feet to 20 feet high and 
- stand 30 feet apart. Two trees of Oldenburg were sprayed in 
bloom and two other trees which were selected as being as near 
like these as possible were not sprayed in bloom. All of these 
trees were sprayed alike on the west side May 4 before the blos- 
soms opened, but after the leaf buds had opened, using Bor- 
deaux mixture, 1 to 10; and sodium arsenite at the rate of 1 
pound of white arsenic to 200 gallons of the mixture, which is 
equivalent to 1 pound of Paris green to 100 gallons. 
The Oldenburg trees which were sprayed in bloom were 
treated Saturday, May 19, about four days after the blossoms 
began to open. After the blossoms had fallen, May 29, the cor- 
responding trees which had not been sprayed in bloom were 
