OPTICS &> OPTICAL LECTURES 41 



... his Friends could not prevail upon him to print his Book of Opticks until the year 

 1704. . . . The present Treatise is a faithful Translation of a very correct Copy, taken from 

 the Latin Original, as it was read in 1669 . . . and at the Bottom of the Pages we have 

 added here and there some very short Remarks ... we hope shortly to present the Publick 

 with several Mathematical Pieces, that were long ago written by our great Author, though 

 never yet printed.' Preface. 



Isaac! Newtoni, Eq. Aur. \ in | Academia Cantabrigiensi | Matheseos 

 olim Professoris Lucasiani Lectiones Opticae, | Annis MDCLXIX, 

 MDCLXX, & MDCLXXI. | In Scholis publicis habitae ; | et nunc 

 primum ex MSS. in lucem editae. | Londini | Apud Guil. Innys, 

 Regiae Societatis Typographum. | MDCCXXIX. | 4*0. [191 



Collation: pp. xii -|- 291 + Addenda & Corrigenda, 5 pp. 24 plates: 

 Tab. i to 13 to part i, and Tab. i n to part 2. 



* The MS. from which the Latin edition was printed was that which had been given by 

 Newton himself to David Gregory, but after the edition had been printed the editor learned 

 that a more perfect manuscript, containing several notes and emendations by Newton, had 

 been presented to the University of Cambridge. These emendations were therefore printed 

 at the end, and Bp. Horsley has included them.' Brewster's Newton. 



[Printed with the Optice 1747, 1749, 1773, * Nos. 183 5.] 



Illustrations : 



Airy, Sir G. B. On a remarkable modification of Newton's Rings. 



1831. 4to. [192 



On the Phenomena of Newton's Rings which formed between two 



transparent substances of different refractive powers. Plate. 



1832. 410. [193 



Algarotti, Count. II Newtonianismo per le dame, ovvero dialoghi 

 sopra la luce, e i colori. Napoli, 1737. 4*- [194 



Aso editions 1738, 1739, 1746. 8vo. 



Theory of Light and Colours, translated from the Italian [by 



Mrs. Elizabeth Carter]. 2 vols. 1739. I2mo. [195 



Also editions 1742, 1745- I2mo. 



Le Newtonianisme pour les dames. Traduit par Duperron de 



Castera. 2 vols. 1738. [196 



