470 Mr, A. B. Northeote on the Brine-springs of Cheshire. 
Table of constituents, calculated to grains in the imperial gallon. 
August. 
Chloride of sodium...) -21802°773- 
Chloride of magnesium . . 143°795 
Bromide of sodium Pp POEs 16°986 
Sulphate of lime ... . 351°500 
Carbonate of lime. . . . 43°727 
Carbonate of magnesia see 84977 
21948°758 
Comparative Table. 
Solid constituents of: Cheshire. Brines in 100 parts. 
August 1856, 
Anderton. | Marston. | Winsford. | Wheelock. 
Chloride of sodium ........seeeeesee 25°786 | 25:222 | 25:525 | 25-333 
Bromide of sodium ...+++...eeeseees 0103 ‘O11 0158 0202 
Todide of sodium ........+++... oe eune trace trace trace trace 
Chloride of magnesium ......ess00r000] sevens | eeeese | cesses 171 
Sulphate of potassa ........sseeseeeee trace trace trace trace 
Sulphate Of soda cic...ccccceneceecees| —sereee "146% | ocacect) WeSeeeee 
Sulphate of lime .....,.....46. Sea 454 391 450 ‘418 
Carbonate of Soda ..........eseeeeseeee 023 036 032 052 
Carbonate of lime ...........-sesee008+ SUE SS “006 . | dreesees 
Carbonate of magnesia .....+.,...+09 075 “107 184 107 
Carbonate of manganese ........+... trace trace trace trace 
Phosphate of lime .......++....-02++6+5 trace trace trace trace 
Phosphate of sesquioxide of iron ...} trace trace trace trace 
BUTANE eases tap S>pnespes <t-c2nen rece trace trace. trace trace 
[ 26-3003 | 25-913 | 26-2128] 26-1012 
Solid residue by direct experiment.| 26°274 | 25870 | 26:052 | 26-071 
Towards the latter part of the autumn of last year, a consider- 
able panic was created by a sudden outcry being raised that the 
supply of brine was rapidly diminishing over the whole of 
Cheshire. I made at the time many inquiries as to the truth of 
this statement, which had found its way into the public journals, 
and it proved, as is usual in such cases, that the account, although 
based upon truth, was very much exaggerated. A diminution 
in the supply of brine is a phenomenon of no unfrequent occur- 
rence, and is in fact of two kinds—periodical and occasional. 
A periodical sinking of the water in the brine-shaft is found to 
occur in the summer season, the brine rising with the approach 
of winter, and attaining its highest level about December or 
January : these alternations have generally been very regular, but 
during the year 1856 a total departure from the usual variations 
took Te which, ending i in a rapid sinking of the brine during 
e . ° ° e 
