312 
Scheme of Water Supply . [July? 
districts composed of millstone grit or of Silurian rocks on 
the other. The following examples will probably be con- 
sidered sufficient for the purpose here intended : — • 
Liverpool District* 
a 
}) 
)) 
5 J 
a © 
Birmingham! 
Stourbridge]: 
Leek (Staffordshire)!! 
Whitmore (near Crewe)§ 
Parkside (nr. Warrington)^ 
Nottingham .... 
Wells or Grains 
Spiings. per Gallon. 
Bootle 24*00 
Soho 24*80 
Windsor 23*22 
Green Lane . . . 13*60 
Aston ..... 12*82 
Well of W. W. Co. . 21*95 
Wall Grange Spring. 12*26 
Well of L.&N.W. Ry. 6*io 
Well 11*12 
Several wells (sub- 
urban) . . . 12*0 to 16*0 
As an illustration of the effeCt of the percolation of saline 
matters on the waters of even deep wells in large towns, I 
give here the analysis of the waters of a well from the 
south side of Manchester, made in 1865, by Dr. Angus 
Smith, F.R.S. Th is will show the desirability of having 
all wells as far as possible removed from such sources of 
contamination. 
Water from Welly Manchester , South Side . 
Grains 
per Gallon. 
Chloride of sodium . 4*88 
Sulphate of soda 7-33 
Carbonate of soda 7*35 
,, of lime 977 
„ of magnesia 5*29 
Phosphoric acid, potash traces 
34‘65 
Lithia discovered by spectroscope. 
On the other hand, the purity of the waters from the 
Aston Well, the Wall Grange Spring (yielding 3,000,000 
* Analyses by Richard Phillips, F.C.S. 
f Analysis by Dr. Hill, F.C.S. 
+ Supplied by Mr. E. Bindon Marten, This well is only 46 feet deep, 
I! Analyses by R. Phillips. 
§ This well supplies the works and populace of Crewe, and was sunk, on 
the recommendation of the author, by the London and North-Western Rail- 
way Company, 1864. 
% Analysis by Dugald Campbell, P\C.S. 
