Note 302 — Chapter XVIII · Friends of Boulton and Watt—The Lunar Society.
Reading edition
He discovered, in the course of his inquiries at different periods, no fewer than nine new gases,—oxygen, nitrogen (a discovery also claimed by Cavendish and Rutherford), nitric oxide, nitrous oxide, sulphurous acid, muriatic acid (chlorine), volatile ammonia, fluo-silicic acid, and carbonic oxide,—“a tribute to science,” as is truly observed by Dr. Henry, “greatly exceeding in richness and extent that of any contemporary.”