MEMOIRS 
^^' O F T H E 
Royal Society ; 
Being a New Abridgment of the 
Philofophical Tranfaftions: 
Giving an A^ccount of the Undertakings, Studies, and 
Labours of the Learned and Ingenious in many 
confiderable Parts of the W o r l d 5 from the firft Inftitution 
of that Illustrious Society in the Year i5(^5, to 
the Year of our Lord 1735 inclufive. 
The whole carefully abridg'd from the OriginalS;^ and the 
Order of Time regularly obferv'd, with a Tranflation of the 
L A t I N T R A c T s, and the Theoretical Parts apply'd to 
Praftical Ufes ; alio an Explanation of the Terms of A a t as 
they occur in the Courfe of the Work j being a Work of 
general Ufe to the Publick, and worthy the Perufal of all 
Mathematicians, Artificers, Tradesmen, ^c. 
for their Improvement, in various Branches of Budneis. 
By Mr. B A D D A M. 
Illuitrated with a great Variety o f Copper Plates. 
VOL. III. 
Printed by G. Smith, in Stanhope-Jireety near Clare-marht, for the 
Editor, one Door below the Black-Lyon Inn, IVater-Lane, Fleet- 
Jfreeti and Sold by J. James, at Horace's Head, under the Royal 
Exchange-, W. Shropshire, in Old Bond-ftreeti J. Millan, 
Bookfeller, oppofite the Admiralty Office i T. Wright, Mathematical 
InJlrumentMaker to His Majesty, Fleet-Jlreet\ N. Adams, 
Optician to their Royal Highnesses the Prince and Princefs of 
Wales, at the Golden SpeSiacles, Charing-Cro/s; C, Pickman, 
Bookfeller, RatcliJ- Highway ^T^n^ B. Cole, Mathematical Injlfument* 
Maker, Poppings-Court, Fleet- fir eet.. 
M.DCC.XXXIX. 
