2 parts in one volume, 4to (197 x 159mm). General title (a cancel), errata on p. 127 (Part I), Benevolo Lectori leaf present (intended to be canceled) at beginning of Part II, errata p. 148 (Part II), additional addenda leaf at end of Part II following p. 148; 28 folding plates. (Imprimatur leaf, dedication leaf, and Epistola ad lectorem leaf bound after Part I, cancel title a 1/2-inch narrower than text and with a pale stain, stamp excised on first leaf of text of the Epistola [a1] with patched repair, plate 3 in Part I with paper flaw causing loss to blank lower fore-corner, occasional minor spotting, minor marginal soiling.) 18th-century half vellum, marbled boards (minor soiling and rubbing). 

 

In 1669 Barrow issued his Lectiones XVIII, which would come to be known as the Lectiones Opticae. The Lectiones Geometricae were first published in 1670, and the two volumes together, revised, corrected, edited and slightly expanded by Collins and Newton, were first published in this 1674 edition. It is stated in the preface that Newton revised and corrected the Lectiones Opticae. 

 

In this 1674 first complete edition, the title and preliminary matter for the Lectiones Geometricae were intended to be cancelled. ESTC notes this is  "A reissue of 'Lectiones XVIII' and 'Lectiones geometricae', with cancel general title page and added p. 149-151, [1] (addenda). No copy is recorded with the original second title page retained; the following leaf, “Benevolo lectori”, is also intended to be cancelled…” The present copy does not contain the second title, but does retain the Benevolo Lectori leaf.

 

Wing B945; Babson 249; ESTC R3609.