€4 Account of Sutton Spa. 



and again precipitated by caustic ammonia, produced nearly 

 half a grain of iron oxide, which, fused with charcoal by 

 the blowpipe, was strongly attracted by the magnet, and 

 assumed some degree of metallic lustre. The remaining 

 11^ grains, insoluble in the acid, evidently consisted of 

 clay, mixed, as appeared in a magnifier, with several crystals 

 of silex, which were probably merely suspended, and not iit 

 a state of solution, in the water. 



Grains. 



We have then, in a wine gallon of the Sutton 



water, of muriate of soda - - 1 802 O 



Muriate of lime, with an admixture of muriated 



magnesia ^ - • - _ 226 



Carbonate of iron - - - 5 



Clay and silex - - - 115 



Total' of solid contents 1320 



Cubic Inches. 



Carbonic acid - - * 1 S05 



Common air contaminated with azote and sul- 

 phurated hydrogen gas - - 1 2 6SS 



Total of volatile contents 14 440 



This, in common with most mineral waters, varies not 

 a little in the quantity and proportions of its ingredients at 

 different seasons and in different states of the atmosphere. 

 At one time, the caustic ammonia produced no effect on 

 the water ; at another, it deposited a very considerable por- 

 tion of magnesia; and the hepatic smell is sometimes not 

 in the least perceptible, particularly in dry weather*. But, 

 how^ever provoking these variations may be to the accurate 

 chemist, they are luckily of little moment to the practical 

 physician. A considerable latitude, in this respect, makes 

 no material difference in the medicinal effects ; much more 

 depending on the quantity of the water, as a diluent and 

 detergent, than on any other circumstance. 



I am ffreatlv indebted to my ingenious friend Mr. Du- 

 gard, house-surgeon to the Salop Infirmar)', for his kind 

 assistance in making the above analysis. 



• In the present ei posed state of the opening of the well, this must parti» 

 cularly happen, laiuy weather weakening the saline impreenation, and a 

 warm' air exhaling the gases and precipitating the iron. The well known 

 effect of salts in operating more powerfully as they are the more diluted, 

 compensates for tlie diminished strength of the solution. 



Tlie 



