Royal Society imprimatur

First edition; folio (30 x 20 cm); armorial bookplate to front pastedown, old library label to front free endpaper, imprimatur for The Royal Society, stain to gutter head from B1 to N1 and 2N1 to 2X2, B3 and B4 loose at gutter head, small hole in Y1 (0.5 x 1 cm), binder's corner turn at 2G3; re-backed calf, contrasting morocco title-piece in gilt, corners repaired, extremities lightly rubbed; [16], 346, [6]pp.