574 
Mr . Hatchett’s Analysis of 
I next examined the water of Diss Mere, (No. i.) and I was 
at length led on, step by step, to make a regular analysis of 
the fixed ingredients. 
Before I made the analysis, I examined this water with cer- 
tain re-agents, and remarked the following properties. 
1. The water of Diss Mere has a yellowish tinge, and the 
flavour is rather saline ; but it has not any perceptible odour, 
2. Prussiate of potash did not produce any effect. 
3. Acetite of lead produced a slight white precipitate. 
4. Nitrate of silver formed one, very copious. 
5. Tincture of galls had not any effect. 
6. Muriate of barytes caused a slight precipitate. 
7. Ammoniac, potash, and oxalic acid, severally produced 
precipitates, when added to different portions of this water. 
ANALYSIS. 
A. Three hundred cubic inches of the water, by a gentlo 
evaporation, left a pale brown scaly substance, which weighed 
58 grains. 
B. These 58 grains were digested in alcohol, without heat, 
during 24 hours, and afforded a solution, which, by evapo- 
ration, yielded muriate of lime, slightly tinged by marshy ex- 
tract, 18 grains. 
C. Six ounces of distilled water were then poured on the 
residuum, and, with repeated stirring, remained during 24 
hours. By evaporation, this afforded muriate of soda, with a 
very small portion of sulphate of soda; in all, 10 grains. 
D. What remained was boiled in 800 parts of distilled 
water, and the solution, being evaporated, left of selenite 
1.70 gr. 
