OPTICS 37 



Isaac Newton, Knt. | London : j Printed for William and John 

 Innys at the | West End of St. Paul's. 1721. | 8vo. [177 



Collation: Title-page, Advertisement I. and II., Errata, 4 11. + pp. [i] 

 [382] + Books printed for William and John Innys, i If. Sigs. A 4 B 

 Bb 8 . 12 plates, re-engraved: Lib. I. par i, Tab. i v, after p. 98; 

 Lib. I. par 2, Tab. i iv, after p. 168 : Lib. II. Tab. i & n, after p. 198 ; 

 Lib. IIL Tab. i, p. a 6 4 (?). 



No new Advertisement to this edition, Advertisement 7. has been altered to the original 

 wording of the first edition of 1704. 



Opticks : | or, a | Treatise | of the | Reflections, Refractions, \ Inflections 

 and Colours \ of | Light. | The Fourth Edition, corrected. \ By 

 Sir Isaac Newton, Knt. | London : | Printed for William Innys 

 at the West-|End of St. Paul's. MDCCXXX. | 8vo. [178 



Collation: Title-page, Advertisement I. and II., Advertisement to the 

 Fourth Edition, 4 pp. + pp. [i] 382 + i blank leaf. Sigs. A 4 B Bb 8 . 

 12 plates as in third edition. 



' This new edition is carefully printed from the Third Edition, as it was corrected by the 

 Author's own Hand, and left before his Death with the Bookseller. Since Sir Isaac's 

 Lectiones Opticae, which he publicly read in the University of Cambridge in the years 1669, 

 1670, and 1671, are lately printed, it has been thought proper to make at the bottom of the 

 Pages several Citations from thence, where may be found the Demonstrations, which the 

 author omitted in these Opticks.' Advertisement. 



Translations : 



Optice : | sive de | Reflexionibus, Refractionibus, | Inflexionibus & 

 Coloribus | Lucis | Libri Tres. | Authore Isaaco Newton, Equite 

 Aurato. | Latine reddidit Samuel Clarke, A.M. | Reverendo ad- 

 modum Patri ac D no Joanni | Moore Episcopo Norvicensi a | 

 Sacris Domesticis. | Accedunt Tractatus duo ejusdem Authoris | 

 de Speciebus & Magnitudine Figurarum | Curvilinearum, latine 

 scripti. | Londini : | Impensis Sam. Smith & Benj. Walford, Regiae 



