Hydrogen, combustion of, under pressure, xxii, 352.
—, —, in water, being a new application of Hare's blowpipe, v, 347.
—, mixed with oxygen, effect of breathing, viii, 375.
—, a new carburetted, xxx, 180.
—, gas apparatus, vii, 392.
—, self regulating reservoir for, R. Hare, xi, 140.f
—, peroxyd of, action of, xvii, 34.
—, and chlorine, iii, 341.
Hydromagnesite of Hoboken, Wachtmeister, analysis of, xviii, 167.
Hydrometers, opinion on, R. Hare, xi, 115.