Numb. 44 6. 
PHILOSOPHICAL 
TRANSACTIONS 
For the Months of July , Auguft, September , October, 
November, and 'December, 1737. 
The CONTENTS. 
I. An Account of the Peruvian or Jefuits 
Bark, hy Mr. John Gray, F. R- S. now at 
Cartagena in the Spanifli Weft-Indies ; 
extracted from fome Fapers given him by 
Mr. William' Arrot, a Scotch Surgeon , 
who had gather'd it at the Flace where ■ 
it grows in Peru. Communicated by Mr ... 
Phil. Miller, F. R. S. &c. 
II. An Account by Mr. John Eames, F. R. S. 
of a Rook entitaled, A Mathematical Trea- 
tife, containing a Syftem of Conic-Sedtions, 
with the Dodtrine of Fluxions and Fluents,, 
applied to various Subje&s. By Mr,. 
John Muller. 
III. An Obfervation of the Moon’s Fran fit by 
Aldebaran, April 3, 1 73 6. made at Lon- 
don John Bevis, M. D. 
IV. A Colledtion of the Obfervations of the 
Lunai 
