COL N ees ON ETS, 
vil 
I. Biographical Account of Sir James Hunter Blair, Bart. Page'31. 
Il. Biographical Account of John Dryfdale, D. D. ipetys= 37 
ILI. Biographical Account of Adary Smith, LL. D, = 55 
Donations prefented to the SociETY, continued Jrom the 
Second Volume, - 139: 
Postscript to the HisTorRyY, + Account of a Mineral from 
Strontian, by Dr Charles Thomas Hope, - 143. 
a nr et ee es? 
PART aE 
PAPERS READ BEFORE THE SOCIETY. 
if 
PAPERS OF THE PHYSICAL CLASS. 
I, Experiments and Obfervations on the Unequal Refrangibility of 
Light. By Dr Robert Blair, - Page 3. 
II. Obfervations on Granite. By Dr Hutton, 77. 
Ill. Of the Flexibility of the Brazilian Stone. By Dr Hutton, 86. 
IV. An Analy/is of the Waters of fome Hot Springs in Teeland: 
By Dr Black, - - - + 05+ 
Vv. An Account of the Hot Springs near Rykum in Iceland. By 
John Thomas Stanley, Efq; — = = 127. 
VI. dan Account of the Hot Springs near Haukadal in Iceland. 
By John Thomas Stanley, Efq; - a 138. 
VII. On the Origin and Inveftigation of Porifms. By Mr Playfair, 154. 
VIL An Account of the Quaffia Polygama, and of ihe Cinchona 
Brachycarpa. By Mr John Lindfay, cs 205. 
IX. Defcription of a Human Male Monfter. By Dr Alexander 
Monro, - - 215. 
X. Ex- 
