Numb. 479. 
PHILOSOPHICAL 
TRANSACTIONS. 
For the Months of March and April , 174.6 . 
The CONTENTS. 
I. Extract of a Letter from Mr . William Ardeton, 
F. R. S. to Mr. Henry Baker, F.R.S. with the 
Defcription of an improved Hygrofcope. page 9 5 
II. A Letter from to Mr. John EUicot, F. R. S . of 
weighing the Strength of Electrical Effluvia, p. 96. 
III. Extracts of Two Letters from Mr. Tho. Knowl- 
ton to Mr. Mark Catesby, F. R. S. concerning the 
Situation of the ancient Town Delgovicia 5 and of 
two Men of an extraordinary Bulk and Weight* 
p. 100. 
IV. Fr in dpi a TOynamica , five Principia Mechanices 
Metaphyfica $ AuCtore Jacobo Jurin, M. T). 
R. S. S. p. 103. 
V. An Account of Two extraordinary Deers Horns, 
found under-ground in different Parts of Yorkfhire 5 
in a Letter from Mr. Tho. Knowlton to Mr. Mark 
Catesby, F. R . S. p. 124. 
VI. The Phenomena of Venus, reprefented in an 
Orrery made by Mr. James Fergufon, agreeable to 
the Obfervations of Signore Bianchini* p. 1 27. 
VII. 
