BOYLE, Robert (1627-1691). An Essay of the Great Effects of Even Languid and Unheeded Motion. Whereto is Annexed an Experimental Discourse of some Little Observed Causes of the Insalubrity and Salubrity of the Air and its Effects. London: Sam. Smith, 1690. 2 parts in one volume, 8° (173 x 108 mm). Without blanks I7 and I8 in first part, and final blank of second part. (Occasional light spotting and browning.) Recent calf (extremities very lightly rubbed). Provenance: Mechanics Institute (19th-century ink stamps).