199 
“ On the Rainfall at Old TrafFord, Manchester, and Com- 
parison with the Average of Twenty Years and Seventy- 
seven Years,” by G. V. Vernon, F.R.A.S, F.M.S. 
In a paper published in Volume I. of the third series of 
the Society’s Memoirs, I gave the rainfall for Old TrafFord, 
for the years 1850 to 1860, and I beg now to submit to the 
society a continuation of the same down to the end of 1870, 
making a period of ten years. 
The period 1850 to 1860 was unfortunately very incom- 
plete, owing to the month of August being deficient in the 
first six years of the period. The series I now submit is 
complete throughout the period of ten yoars. 
In the first place I annex a comparative statement of the 
various periods. 
Month. 
1850-1860 
1861-1870 
1850-1870 
1794-1870 
J anuary 
2'778 
2-659 
2-719 
2"505 
February 
1-899 
2-412 
2156 
2-397 
March 
1-925 
2-356 
2131 
2-297 
April 
1-848 
1-983 
1-915 
2-031 
May 
1-808 
2-112 
1-953 
2-316 
J une 
3-310 
2-286 
2-798 
2683 
July 
2-869 
2-547 
2-713 
3-515 
August* 
4-806 
2913 
3-454 
3-534 
September 
2-745 
4014 
3-349 
3-263 
October 
3-280 
4-191 
3-785 
3-877 
November 
2-611 
3-245 
2-928 
3-814 
December 
2-786 
3-347 
3053 
3-307 
Sums 
32-665 
34-165 
32-954 
35-539 
* 1850 to 1860, 4 years only. 
This table evidently points out the fact that the period 
1850 to 1860 was drier than the period 1860 to 1870, and 
would have shown it much more so if the observations for 
August had been complete during the earlier period, as the 
average of the four years 1857, 1858, 1859 and 1860 is quite 
an abnormal value ; the rainfall in this month being exces- 
sive in each of these years. 
During the last ten years the smallest amount of rain 
occurred in 1865, the amount being 29 - 389in. falling upon 
