280 Molesworth’s pocket-book
WATER-WORKS.
1 gallon of water = 0-16 cubic ft. approximately
cube foot of water = 6| gallons approximately.
1P, C°ns«mPtion of water in towns.
fXta| Ær per head ■“>' “ «”>*-■><-
por.h“1’ P'r '’«y in raanur.,-
Turing towns . the mam should be large enoue-h
' W6 than,double thc average quantity. 8
demand <3e'““d about 24 the average
** contain above 120
St r -PIny \ the rainy dlstricts, and 200 davs’
supply the less rainy districts of England '
Onreservoirs s.hould contain 3 days’ supply.
avSÄ’Zle’*””1 A‘hS °f -
^Loss from overflow of storm-wafer about 10 per
,, ®vaPoration 50 per cent, less on flat country
than on an undulating rocky country.
Infiltration in England, in Winter .
” » Spring .
” » Summer .
” . ” Autumn .
Average of the Year .
„ . x „ Rainfall.
Gieatest rainfall in England in 24 hours, about 3 inche'
Meanal r“nfaU 111 Eng>“d from 20 to 70 inches.
,.50 to 70 ’’
130 to 190 „
23 »
35 „
•56
'20
08
33 per cent.
35 „
2 „
48 „
42 „
In India, in the plains''
,, in the hills ..
Cape .........
Tasmania .. . ’ \'
Greatest evaporation iA 24 hours in
India about ., , t .
M»an daily evaporation in India ' ’
” •> England..