XU CONTENTS. 



Page 

 Account of Books, viz. 1. Boyle on Gems; 2. Swammerdam, Uteri Muliebris Fabrica; 3. Cas- 



sini on Refractions and the Sun's Motion; 4. Dr. Sharrock on Vegetables 733 



Quaeries proposed on his Theory of Light and Colours ; by Newton , . . . . 734 



On a Communication with the Ductus Thoracicus ; by Dr. Needham 736 



A second Letter on Newton's Theory, &c.; by F. Pardies 738 



Answer to the same; by Newton 740 



Account of Books, viz;, 1. Dr. Tonstal on Scarborough Spa; 2. New England's Rarities, by 

 J. Josselin; 3. Edw. Bolnest on preparing Animals^ 8cc. ; 4. Miscellanea Curiosa Phy- 



sica, &c 743 



