The TABLE. 



r A Difcourfe concerning Gravity, and its Proper* 

 ties, wherein the Defcent of Heavy Bodies, 

 and the Motion of Prqje&s is briefly, but full; 

 handled : Together with the Solution of a Pro~ 

 blem of great Vfe in Gunnery, by Mr. E. Hal- 

 ley. Pag. 304 



A Prof option of General Vfe in the Art of Gunnery, 

 /hewing the k\ule of laying a Mortar to pafs, in 

 order to ftrike any Objeft above or below the Hori- 

 zon, by Mr. E. Halley. 326 



r A Difcourfe concerning the Meafure of the Airs l\e- 

 fiftance to Bodies moved in it. By the Learned 

 John Wallis, S. T. D. and F. t\. S, 3 34 



An lnftance of the Excellency of the Modern Alge- 

 bra, in the Hefolution of the Problem of finding 

 the Foci of Ofticl^ Glaffes univerfally. By 

 Mr. E. Halley, S. j^. S. 35:0 



Appendix. 



An Analytical ^efolution of certain Equations of 

 the %d, $th, Jth, $th Powers, and fo on ad 

 Infinitum, in finite Terms, after the man- 

 ner of Cardan's twites for Cubickj. By Mr; 

 A. Moivre, F. ^. 5. 36? 



A Difcourfe concerning the AEtion of the Sun and 

 Moon on Animal Bodies ; and the Influence 

 which this may have in many Difeafes. By 



Richard Mead, ML D, F. R. S. 371 



A 



