40 
BULLETIN 716, TJ. S. DEPARTMENT OF AGRICULTURE. 
Hay yielded 1J tons per acre in 1912 and 1916, the best two hay 
years, while in 1914, the poorest hay year, the yield was slightly 
less than 1 ton. 
For each crop there were good years and poor years, but in no 
year were all crops good or all crops poor. The year 1912 had 
average corn and wheat yields and good oat and hay yields; 1913 
had good corn yield, average oat yield, and low wheat and hay yields ; 
1914 had an average corn yield, good wheat yield, and low oat and 
hay yields ; 1915 had average yields of corn, oats, and hay and a good 
wheat yield; in 1916 the yields of corn, wheat, and oats were low, 
while that of hay was good. There was no year without some good 
crop, so that each year had a fair amount of feed for the stock. The 
crop yields, as a whole, were highest in 1912 and lowest in 1913. 
Table VIII. — Yield per acre of the principal crops on 25 farms over a period of 
five years, 1912-1916 (Palmer Township, Washingto?i County, Ohio). 
Crop. 
1912 
1913 
1914 
1915 
1916 
Five-year 
average. 
Corn 
bushels.. 
43 
52 
'43 
44 
35 
44 
Wheat 
do.... 
14 
9 
18 
18 
11 
14 
Oats 
do.... 
34 
31 
25 
28 
24 
29 
Hay 
tons.. 
1.5 
1.1 
.9 
1.2 
1.5 
1.2 
The reason assigned for the poor wheat crop in 1913 was injury 
from Hessian fly and for the poor crop in 1916, winter killing. 
The reason for yearly variation in the yields of corn and hay may 
best be found in the rainfall diagram on page 8. It is generally con- 
sidered by those who have made correlations between rainfall and 
corn yields that the amount of rainfall during the month of July 
greatly influences the corn } T ields. July, 1913, had greater rainfall 
than any other July of the five-year period, and it was the year 
with best corn yields. On the other hand, July, 1916, had less rain- 
fall than any other July of the period, and 1916 was the year with 
lowest corn yields. July, 1914, had little rainfall, but the season be- 
ing the latest of any of the five years, the rains of early August 
sufficiently offset the July drought so that the corn yield for that 
year was about normal. 
The total rainfall during the months March to June, inclusive, or 
during the growing season for hay. was greatest in 1912 and 1C16, 
the two years with best hay yields, and least in 1914, the year with 
]owest hav vields. 
THE KIND AND AMOUNT OF LIVE STOCK. 
The total amount of live stock kept each year is shown in Table 
IX, together with the percentage each kind represented of the total 
productive live stock. There was a gradual yearly increase in the 
