107 
Quarterly 
Periods. 
1S77. 
FaU 
in 
Inches. 
Average 
of 17 
years. 
Differences 
Quarterly Periods. 
Average 
of 17 
years. 
1877. 
Average 
of 17 
years. 
1877. 
r 
January 
5*277 
2*940 
+2*337 
) 
52 
72 ) 
February 
4*192 
2*337 
+1*855 
f- 7*734 
11*927 
March 
2*458 
2*457 
+0*001 
) 
r 
April 
2*073 
1*994 
+0*079 
} 
46 
48 < 
May 
3*059 
2*110 
+0*949 
[ 6*765 
7*028 
June 
1*896 
2*661 
—0*765 
3 
c 
July 
5*518 
3*359 
+2*159 
) 
53 
61 ) 
August 
4*880 
3*439 
+1*441 
[ 10*900 
12*808 
l 
September 
2*410 
4*102 
—1*692 
3 
r 
October 
4*038 
4*216 
—0*178 
57 
69 5 
November 
5*540 
3*448 
+2*092 
f 10*724 
13*412 
December 
3*834 
3*u60 
+0*774 
3 
208 
250 
45*175 
36*123 
+9*052 
36*123 
45*175 
In the next table are given the results obtained from rain 
gauges of two different kinds, placed in close proximity in 
the same plane, and 3ft. from the ground, the one has a 
lOin. round receiver and the other a 5in. square one. The 
results, as shown in the table, explain themselves, and show 
that their monthly and annual differences are extremely 
small, so that the gauges are good checks upon each other. 
1877. 
Rainfall in 
inches in 
lOin. Round 
Receiver, 
3ft. from the 
Ground. 
Rainfall in 
inches in 
5in. Square 
Receiver, 
3ft. from the 
Ground. 
Differences. 
From 186 
Average of 
10 years 
Rainfall in 
inches, in 
lOin. Round 
Receiver, 
3ft. from the 
Ground. 
7 to 1877. 
Average of 
10 years 
Rainfall in 
inches, in 
oin. Square 
Receiver, 
3ft. from the 
Ground. 
I 
Differences. 
January ... 
5*277 
5*297 
+*020 
3*178 
3‘228 
+*050 
February .. 
4*192 ‘ 
4*212 
+*020 
2*391 
2*374 
—017 
March . . . 
2*458 
2*439 
—019 
2*375 
2*388 
+*013 
April 
2073 
2*011 
—062 
2*002 
1*983 
—019 
May 
3*059 
3*095 
+*036 
2*021 
1*997 
—024 
June 
1*896 
1*928 
+*032 
2*511 
2*525 
+*014 
July 
5*518 
5*624 
+*106 
3*394 
3*377 
—017 
August ... 
4*880 
4*950 
+*070 
3*545 
3*532 
—013 
September 
2*410 
2*408 
—002 
3*871 
3*829 
—*042 
October ... 
4*038 
4*035 
—*003 
4*689 
4*674 
—015 
November 
5*540 
5*447 
—*093 
3*493 
3*508 
+*015 
December 
3*834 
3*816 
—018 
3*302 
3*342 
+*040 
45*175 
45*262 
+*087 
36 772 
36*757 
—015 
