SO 0 • M 1 
d * c.; A 
PROCEEDINGS 
OF THE 
ROYAL SOCIETY OE EDINBURGH. 
SESSION 1857-58. 
CONTENTS. 
Monday , 7th December 1857. 
PAGE 
Opening Address, Session 1857—58. By Dr Christison, 2 
Excursions in the Troad, with Observations on its Topo- 
graphy and Antiquities. Part I. By Dr William 
Bobertson, F.B.C.P. Communicated by Dr J. Y. 
Simpson, . . . . • 17 
Donations to the Library, . . . . 17 
Monday, 21 st December 1857. 
Biographical Notices of MM. Thenard and Cauchy, two re- 
cently deceased Foreign Members of the Society. By 
Professor Kelland, .... 
Excursions in the Troad, with Observations on its Topo- 
graphy and Antiquities. By Dr William Bobertson, 
F.B.C.P.E. Communicated by Dr J. Y. Simpson, 
On the Composition of the Building Sandstones of Craigleith, 
Binnie, Gifnock, and Partick Bridge. By Thomas 
BloxhaM, Assistant Chemist, Laboratory of Industrial 
[Turn over. 
30 
41 
