New YorK AGRICULTURAL EXPERIMENT STATION. 89 
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The expense of spraying was at the rate of $1.15 per acre for 
each application or a total of $6.90 per acre for six sprayings. 
At digging time it was found that the test rows in the 2%4-acre 
field had been so much damaged by water as to make the results 
wholly unreliable; accordingly the test was confined to the five- 
acre field. The test rows were 699 feet long by 2.87 feet wide, 
21.71 rows being required to make an acre. They were dug with 
a potato digger on September 24. The yields were as follows: 
Second sprayed row on the west, 496 lbs. marketable tubers. 
Second sprayed row on the east, 553% lbs. marketable tubers. 
Middle unsprayed row, 393% Ibs. marketable tubers. 
Yield, sprayed, 189 bu. 52 lbs. marketable tubers per acre. 
Yield, unsprayed, 142 bu. 23 lbs. marketable tubers per acre. 
Gain, 47 bu. 29 lbs. marketable tubers per acre. 
There was no loss from rot. The yield of small potatoes was 
at the rate of 6 bu. 9 dbs. per acre on the sprayed rows and 
5 bu. 36 lbs. per acre on the unsprayed rows. 
At 40 cents per bushel, which was the market price at time 
of digging the test rows, 47 bu. 29 lbs. of potatoes would have a | 
value of $19. Subtracting $6.90, the expense of SPIAVINE there 
remains a net profit of $12.10 per acre. 
THE NICHOLS EXPERIMENT. 
This experiment was conducted by Daniel Dean, Nichols, Tioga 
County. Seventeen acres of potatoes were sprayed nine times 
with a “ Watson” potato sprayer drawn by two horses and 
spraying four rows at each passage with one nozzle per row in 
the first three sprayings and two nozzles per row in the later 
ones. The potatoes were in two fields. One field, containing 
- 6.5 acres, was planted with a varietv Irish Cobbler, while in the 
