Page:Transactions of the Geological Society, 1st series, vol. 1.djvu/234



2. I have stated before (§ II. d.) that some difference prevailed in the specific gravity of the several specimens of the water which were examined. A similar want of uniformity was observed in regard to the quantity of solid ingredients, as will appear from the following statement :

These eight results therefore give 80,5 grs. dried at 180°, as the average quantity of solid ingredients in each pint of the water.

In the first of these trials, a whole pint was evaporated; but in the