London: Royal Society of London, 1772. Full Leather. First Edition. xiv, 494,  pp. 8vo. Full brown leather binding which has been re-backed with the original boards. Gold decoration to spine with burgundy patch title. Minor scuffing to boards from age. Numerous folding plates that illustrate articles. Pages were trimmed slightly when rebound, quite clean within. Very Good.
A very important publication in which Joseph Priestley (1733-1804) presents the first description of photosynthesis along with his discovery of "nitrous air" (nitric oxide) and "vapor of spirit of salt," later called "acid air" or "maritime air" (hydrochloric acid). Folding plate at page 254 illustrates the equipment used in Priestley's experiments. Priestley was awarded the Royal Society's Copley Medal in 1773 for this work.