and to compare those taken in Birmingham with the mean of those
given in "Symons' Rainfall," taken at thirty-seven different
stations distributed over the rest of the country.


TABLE No. 10.
RAINFALL FOR 1903.

Mean of 37
stations in
Birmingham England and
Wales.
Daily Rainfall of 2 in and over ...... None 1 day
Daily Rainfall of 1 in and over ...... 3 days 6 days
Daily Rainfall of 1/2 in and over .... 17 days 25 days
Number of rainy days.................. 177 days 211 days
Total rainfall ...................... 33.86 in 44.89 in
Amount per rainy day ................ 0.19 in 0.21 in


The year 1903 was an exceptional one, but the difference
existing between the figures in the above table and the average
figures in Table 9 are very marked, and serve to emphasise the
necessity for close investigation in each individual case. It
must be further remembered that the wettest year is not
necessarily the year of the heaviest rainfalls, and it is the
heavy rainfalls only which affect the design of sewerage works.