Tracts written by the Honourable Robert Boyle about the cosmicall suspitions [sic], the temperature of the subteraneall regions, the temperature of the submarine regions, the bottom of the sea - Boyle, Robert (Printed by W.H. for Ric. Davis, 1670)
Each tract in pt. 1 has separate paging and divsional t.p.; pt. 2 has special t.p.: Three tracts written by the Honourable Robert Boyle ... Oxford : Printed by W.H. for Ric. Davis, 1671; each tract in pt. 2 has also separate paging and divisional t.p. - Reproduction of original in the Harvard University Library. - Wing, B4056