25 JANUARY 1908, Page 41

A Bibliography of the Works of Sir Isaac Newton. By

George G. Gray. (Bowes and Bowes, Cambridge. 6s. net.)—This work, divided into ten sections, and extending to seventy-eight pages (including index), gives (1) collected editions, (2) " Principia," (3) "Optics," (4) " Fluxions," (5) " Arithmetica Universalis," the rest being devoted to minor chronological works, &c. Translations,

are also enumerated.