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METHOD OF WEIGHING GASES.
135
pint of nitrogen weighs 10410 grains, or a cubic foot weighs 116 ounce. That is the weight of the nitrogen. The oxygen is heavier: a pint of it weighs 11910 grains, and a cubic foot weighs 134 ounce. A pint of air weighs about 10710 grains, and a cubic foot 116 ounce.
You have asked me several times, and I am very glad you have, "How do you weigh gases?" I will shew you; it is very simple, and easily done. Here is a balance, and here a