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

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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 :[1]

grains
The 1st specimen yielded 86. In the pint of sixteen ounces.
2d 92.
3d 63.6
4th 80.4
5th 82.8
6th 77.2
7th 84. [2]
8th 78.
─────
644

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

  1. subsequent ones, the quantity of water was diminished to eight, six, and sometimes only four ounces, all of which, for the sake of uniformity, I have reduced in the table to the common standard of the pint.
  2. This specimen I brought myself from the spring; the others were sent me in sealed bottles from the Isle of Wight.