Joseph Priestley: Pioneer Chemist (Immortals of Science) by Rebecca B. Marcus you come too one of the largest seas

one of the largest seas on Earth

When a Child Grieves

Most of us would prefer to be the latter

disarmingly honest

Joseph Priestley: Pioneer Chemist (Immortals of Science) by Rebecca B. Marcus you come too one of the largest seasJoseph Priestley is known as the "father of pneumatic chemistry," because of his pioneer work with gases. The methods he invented of collecting and testing gases enabled later chemists to carry on where he left off. His greatest discovery was the preparation of oxygen from mercuric oxide, in 1774. He is credited with having discovered a number of other gases, among them hydrogen chloride, ammonia, and carbon monoxide. Priestley's formal training was