Mayow (John) Tractatus quinque medico-physici, first edition, engraved portrait frontispiece (frayed at edges with small repair to verso) and 6 folding plates, front free endpaper, frontispiece and a1-3 nearly loose, 2M2-3 loose, small hole to b2 and 2A3 affecting a few words, occasional light staining, light spotting and browning, Royal College of Surgeons in Ireland ink-stamp to title and a4, later endpapers, contemporary calf, rebacked, black morocco label to spine, label and foot of spine lettered in gilt, [ESTC R10053; Wing M1537, Welcome IV, p.93], 8vo, Oxford, Sheldonian Theatre, 1674.

⁂ Includes revisions of two treatises ('De respiratione' and 'De rachitide'), first published in 1668, and three new works, including his most celebrated work, 'De sal-nitro et spiritu nitro-aereo'. John Mayow, and Robert Hooke at the same time, proved that only a portion of air is used in respiration and combustion, by demonstrating that air in an enclosed space, when burned or breathed, is reduced only by one fourteenth.