50 BIBLIOGRAPHY OF NEWTON 



Commercium Epistolicum. Another issue: Title-page the same, with 

 different imprint : Londini : | Ex Officina & impenfis J. Tonson, 

 & J. Watts, | proftant venales apud Jacobum Mack-Euen, | Bib- 

 liopolam Edinburgensem. MDCCXXII. | 8vo. [240 



Collation : same as previous edition. 



Commercium | Epistolicum | de | Varia Re Mathematica, inter | Cele- 

 berrimos praefentis feculi Mathematicos. | viz. | 



Ifaacum Newtonum Equitum Auratum. | 

 D num Isaacum Barrow. II D num J. Collinium. 



D num Jacobum Gregorium. D num Gulielmum Leibnitium. | 

 I)num Johannem Wallisium. Dnum Henricum Oldenbourgum. | 

 Dnum j Keillium. D num Franciscum Slusium. | 



et alios. | 



Juffu Societatis Regiae in lucem editum. | Et jam | Una cum 

 Recenfione praemiffa infignis Contro-|verfiae inter Leibnitium & 

 Keillium de primo | Inventore Methodi Fluxionum ; & Judicio | 

 primarii, ut ferebatur, Mathematics sub-|juncto, iterum impreffum. | 

 Londini : | Impenfis J. Tonson & J. Watts, Proftant venales apud 

 y. Mac\Euen ad Infigne Georgii Buchanani e regione templi 

 Sancti | dementis in vico vulgo dicto the Strand. 1725. | 8vo. [241 



Collation: Same as the 1722 edition, with a new title-page as given. In 

 the copy examined the guard of the title-sheet is plainly seen. See 

 note to next entry. 



Another edition. 1725. [242 



Title-page and collation as the other earlier edition of the same year. The guard of the 

 new title-sheet is plainly seen. But the difference between this (B) edition and the previous 

 one (A) is that the third leaf of ' Ad Lectorm ' has been reprinted, and a sentence altered. 

 The sentence in Edition A is 



* Qua de Questionibus Philosophicis disputata sunt D. Des Maizeaux* a D. Leibnitio 

 <5r aliis accepit 6 in lucem edidit* 



with the note 



' * Vide Epistolas D. Leibnitii ad D. Des Maizeaux 21 Aug. 1716, & D. Des Maizeaux 

 ad Abbatem de Comitibus 21 Aug. 1718, in Collectionum Tomo secundo, pag. 356, 

 & 362 impressas.' 



