114 
The folloAving table shows the results obtained from a 
rain-gauge with a lOin. round receiver placed 8ft. above the 
ground. 
Quarterly Periods 
1873. 
Fall 
in inches 
Average 
of 
13 'years. 
Difference, 
Quarterly Periods 
1 
Average 
of 
13 years 
1873. 
Average 
of 
13 years. 
1873. 
Days 
Days 
1 
( 
January 
^ 3-808 
2-779 
+1-029-) 
! 
45^ 
February .. 
. 0-551 
2-250 
—1-699 [ 
7-481 
7-047 
( 
March 
2-688 
2-452 
+0-236 ) 
c 
April 
0-699 
2-078 
I — I-379S 
46 
52 1 
May 
2-052 
2-085 
—0-033 [ 
6-911 
5-677 
( 
June 
2-926 
2-748 
+0-178) 
c 
July 
4-324 
3-122 
+1-202 S 
52 
671 
August 
4-148 
3-089 
+1-059 [ 
10-296 
10-783 
( 
September.. 
. 2-311 
4-085 
—1-774 ) 
c 
October 
. 4-587 
4-271 
+0-316) 
57 
55 1 
November.. 
. 2-265 
3-128 
—0-863 [ 
10-387 
7-620 
c 
December . . 
.! 0-768 
2-988 
—2-220 ) 
206 
219 
31-127 35-075 
—3-948 
In the next table is given the results obtained from rain- 
gauges of tAvo different kinds placed in close proximity in 
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 most 
of the months of the year, the exceptions being January, 
July, August, and October. The total difference of the fall 
in the two gauges was very small, being even less than the 
difference in 1872. The total difference in 1872 was over 
four tenths of an inch, but in 1873 it Avas barely over three 
tenths of an inch. And an average fall in both gauges over 
a period of six years shows a difference of only about the 
same amount. Thus the two gauges, though of different 
characters as regards their receivers, are good checks upon 
each other. 
