1. _Congress Spring._ Temperat. 50°.

Muriate of Soda, 471.5

Carbonate of Lime, 178.476

Carbonate of Soda, 16.5

Carbonate of Magnesia, 3.356

Carbonate of Iron, 6.168

———————

676. grs.

Carbonic Acid 343 cubic inches.

More recently this Spring has been analyzed by the late Professor DANA,

and, according to him, the constituents in one quart of water are the

following:

Bi-carbonate of Lime, 51.080 grs.

Bi-carbonate of Soda, 18.478

Chloride of Sodium, (common salt,) 97.080

Chloride of Magnesium, (Mur. of 9.140

Magnesia,)

Silex, with a trace of Iron, 1.500

———————

177.278 grs.

Uncombined Carbonic Acid Gas, 36.90 cubic inches.

Azote, 1.80

—————

38.70[393]

Pharmacologia Fourth American, from the Seventh London Edition · 第 771 / 782 题