106 REPORT--1844. 



veral sets of baths exist there. I analysed several of the springs about five years 

 since. I found in the Old Manor Baths, — 



iSulphate of magnesia 153'18 



Sulphate of soda 58'06 



Chloride of calcium 82*83 



Carbonate of lime 12'0.5 



Carbonate of soda ;30-19 Total... 236-31 



With Sulphuretted Hydrogen 8 



Carbonic acid S^- 



Nitrogen S Total... 21^ cubic inches. 



Three other springs, supplying the baths of various proprietors, were so nearly alike 

 in their results that one statement may be sufficient. 



Sulphate of magnesia 17'75 



Chloride of calcium 3*9 



Sulphate of lime 103'8 



Carbonate of lime 12-2 



Carbonate of soda 26-35 Total... 1G4. 



With Sulphuretted Hydrogen 6^ 



Carbonic acid 8f 



Nitrogen 11 Total... 26^ cubic inches. 



I satisfied myself by passing the electric spark through portions of the residual ni- 

 trogen, mixed with various proportions of oxygen alone, and of oxygen and hj'drogen, 

 that no appreciable quantity of carburetted hydrogen or of oxygen was previously 

 contained in the water. 



No other Yorkshire water, except Harrowgate, contains nearly so large a quantity 

 of magnesian salts, and there the chloride, not the sulphate, is present. The wells 

 at Askern, however, were at that time so badly secured, and the strata in which they 

 occur are so porous, that the water varied to an unusual degree. 1 found neither 

 iodine nor bromine by careful search in these waters. 



At Stanley, two miles north of Wakefield, there was, some years ago, an Artesian 

 or overflowing well, which supplied one of the strongest solutions of carbonate of soda, 

 almost without earthy salts, which I have met with ; it contained 



Carbonate of soda 40-8 



Sulphate of soda 5-8 



Chloride of sodium 8*9 



Chloride of calcium 2"1 Total... 57*6. 



At Field Head, in Mirfield, is a strong run of water, powerfully chalybeate, with 

 4 grains of oxide of iron, 25 of sulphate of lime, and 61 of sulphate of soda. It 

 well illustrates the observation that such a proportion of iron may accompany a large 

 or a very small quantity of alkaline and earthy salts. 



The water distributed from the present Leeds water- works is supplied by several 

 springs and streams in the neighbourhood of Eccup. I found these to contain 



from 2-35 to 3-C3 Sulphate of lime. 

 1-33 to 4-27 Carbonate of lime. 

 1-38 to 5-97 Carbonate of soda. 

 Traces of magnesia, and in some cases of iron. 

 7'7 to 11 '65 total solid contents. 



At Leeds we have a water of considerable local repute and some scientific interest. 

 It has long been obtained in abundance in the township of Holbeck, and hence such 

 water, wherever met with, obtains among Leeds people the name of Holbeck Water. 

 The best springs yield 



Carbonate of soda 38-4 



Chloride of sodium 4-2 



Chloride of calcium "6 Total... 43-2. 



It might serve as a subject for chemical speculation, and as yet we have little be- 

 yond speculation in such matters, that in these waters, where the principal salt is car- 

 bonate of soda, we always find sulphuretted and often carburetted hydrogen. But 



