An Essay on Newton's "Principia

London: Macmillan and Co, 1893. Very Good. London: Macmillan and Co., 1893. First Edition. Octavo; red cloth stamped in gilt; green endpapers; 175pp. + advertisements. Boards lightly bumped with mild soiling, more heavily along spine. Binding sound; previous owners' bookplates to front pastedown; a Very Good and sound copy.