viii, 362 pp. 8vo, cont. tree calf, flat spine gilt, red morocco lettering piece on spine. London: S. Crowder & J. Robson, 1778.

First edition in English. “The greatly enlarged and only English version of Dissertatio physica, inauguralis, de caloris animalium causa (Edinburgh, 1775), by Patrick Dugud (ca. 1755-1783), who changed his name to Leslie. In this work he further develops his ideas on the origin and maintenance of animal heat, ascribing it to the presence of phlogiston. The second and major part (pp. 91-352) discusses the nature and properties of phlogiston, with good accounts of the theories of animal... More