( 1035 ) Num^ 3<^2.’ 
PHILOSOPHICAL 
TRANSACTIONS, 
For the Months of September and OBober 17 sp. 
The CONTENTS 
h A Letter of the curious Mr. Henry Barham, R. S. Soc. 
to Sir Hans Sloan, Bart. Vice-Prefident of the Royal 
Society, giving fever al Experiments and Ohfervations 
on the production of Silk- Worms and their Silk in 
England, as made hy himfclf lafl Summer, 
II. Epifiola Jacobi Jurin, M. D. e^R. S. Socii, qua. 
dodrinam fuam De Potentia Cordis, contra nuperas Ob~ 
jediones Viri Clarifs* D. Jacobi Kcillii, M. D. in Num. 
361. Philof. Tranfad:. editas^ defendit, 
III. Meihodus Differentialis Newtoniana illuflrata, At> 
thore Jacobo Stirling, 'e Coll. BallioU Oxon. 
I 
* 
IV. An Account of feme Experiments made on the ^yth 
Drfytf/ April, and onthexyth of July 1719* find how 
much the Refi (lance of the Air retards falling Bodies ^ by 
J. T. Dcfaguliers, L. L. D. and F. R. S. 
9X 
I. A 
