125 
ill the same plane, and 3 feet from the ground. The one 
has a lOin. round receiver, and the other a 5in. square 
receiver. The large receiver had an excess over the small 
one in nearly all the drier months of the year. There were 
six months when the large one had the excess, and six 
months when the small one had it. The excesses in either 
case are exceedingly small, very few of them reach iV of an 
inch for the month. The greatest excesses are in the small 
gauge, and those in the wettest months of August, October, 
and November. There appears quite an unusual monthly 
excess in December in the small gauge. It attained to more 
than half an inch ; but the conditions under which it hap- 
pened are altogethei’ abnormal. Most of it was melted snow^ 
It fell heavily, fitfully, and often curiously intermixed with 
large and small flakes. This I offer as a suggestion as to 
the cause of the excessive difference in last December be« 
tween the fall in the two gauges. An average fall of both 
gauges over a period of seven years shows only a little over 
ffoth of an inch of excess in the larger receiver ; thus the 
two gauges may be taken as good checks upon each other. 
1874. 
Rainfall 
in inches in 
loin, round 
receiver 
3ft. from 
ground. 
Rainfall 
in inches in 
5in. square 
1 receiver 
[3ft. from 
ground. 
Difference. 
From 186 
Average 
of 7 years’ 
rainfall in 
inches in 
loin, round 
receiver 
3ft. from 
ground. 
8 to 1874. 
Average 
of 7 years’ 
rainfall in 
inches in 
5in. square 
receiver 
3ft. from 
ground. 
Difference. 
January 
3-261 
3-219 
— 1~-042 
3-026 
3-011 
+-015 
February 
1-464 
1-440 
+-024 
2-137 
2-099 
+•038 
j March 
2-991 
3-011 
—•020 
2-406 
2-441 
— -035 
April 
0-919 
0-863 
+-056 
2-008 
1-977 
+•031 
May 
1-956 
1-903 
+-053 
1-913 
1-876 
+‘037 
June 
0-889 
0-872 
+-017 
2-355 
2-317 
+•038 
July 
2-136 
2-096 
+-040 
2-793 
2-776 
+•017 
August 
5-767 
5-971 
— -204 
3-272 
3-251 
+•021 
September 
3-477 
3-538 
— -061 
3-866 
3-821 
+•045 
October 
4-091 
4-192 
— -101 
4-976 
4-968 
+•008 
November 
5-111 
5-225 
— -114 
3-154 
3-190 
—•036 
December 
3-169 
3-708 
—-539 
3-288 
3-350 
—•062 
35-231 
36-038 
— -807 
35-194 
35-077 
+•117 
