( I ) Numb, a If. 
Beginning the Nineteenth Volume.' 
PHILOSOPHICAL 
TRANSACTIONS. 
Por the Months of January and February. 169*. 
The CONTENTS. 
I. A Difcourfe concerning the Method of Approximation 
tx in the Extra^ion of Surd Roots. By J. Wallis, 
S.T.D* and Savilkn Profefor of Geometry at Oxford, 
II. A Difcourfe concerning a Method of Difcovering the true 
Moment of the Suns Ingrefi into the Tropical Signs. By E. 
Halley. III. An Account of the probable Caufes of the Pain 
in Rheumatifms ; as alfo of the Cure of a total Suppreffmn 
of Vrtne^ not caufed by a St one ^ by the ufe of Acids . By 
Dr. Edw. Baynard. IV. An Extract of a Letter from Ber- 
nard Connor, M, D. to Sir Charles Walgrave ; giving an 
Account of an Extraordinary Humane SceletoOjS'c. V. Mr. 
Zachary Mayne's Letter^ 1694. Concerning a Spout of Wa- 
ter that happened at Topfliam on the River between the 
Sea and Exeter. An Account of a Book. I. The Anatomy 
of the Brain; containing its Mechanifm and Phyfiology, to-^ 
gether with fome new Difcoveries and CorreUions of An- 
cient and Modern Authors upon that Subjeil, By Henry 
Ridly, Col Med, Lond. Soc, 
B \.An 
