276 . Report oF THE Farm SUPERINTENDENT OF THE 
In addition to the above, a third series of plats has been laid 
off and térmed the nitrogen-test series. These have been designed 
to determine how much nitrogen would make the most profitable 
application. The whole is intended to be illustrative of a method 
of determining what kind, and how much, of any special fertilizer 
to use, or whether it were better to use none at all for the grass or 
other leading crop. 
METEOROLOGICAL SUMMARY FOR GRASS GROWING SEASON. 
For the month of April the 
Maximum temperature was 71.8° F. on the twenty-first.* 
Minimum temperature was 26° F. on the first. 
Mean temperature was 47.3° F. 
The relative humidity was 77 per cent. 
There were fourteen clear and fair days, sixteen cloudy days, 
and a total of 163; hours of bright sunshine. 
The rainfall was 3.28 inches, of which 3. 07 inches fell during the 
last week of the month. 
During the month of May the 
Maximum temperature was 91.8° F. on the eighteenth. 
Minimum temperature was 32.0° F. on the twenty-ninth. 
Mean temperature was 61.3° F. | 
The relative humidity was 77.4 per cent. 
There were twelve clear and fair and nineteen cloudy days, and 
a total of 185 hours bright sunshine; while the rainfall amounted 
to only 1.21 inches on ten days. 
A similar summary for June shows the 
Maximum temperature to have been 85° F. on the twenty-second. 
Minimum temperature, 46° ? F. on the fifth. + 
Mean temperature, 65.9° F. 
The relative humidity was seventy-eight per cent. 
There were eight clear and fair and twenty cloudy days, while — 
two were cloudy with dense high smoke. Rain fell on fifteen 
days, giving a total amount for the month of 7.47 inches. 
On July second, there was a fall of .89 inches of rain, and again eke, 
on the night of the third and fourth, .14 inches. 
* Maximum and minimum are given for twenty-four hours Pree to 
7a. M. Of the date affixed. 
The mean is made by dividing the sum of the 7 a. m.+12 m.+twice the 
6 P.M. reading by 4. 
y+ Or lower on the sixth. No observation was made for several. days on 
account of broken thermometers. 
