CONTENTS. 
Pharmaceut. Lond. Socius , Hort . Chclfean. Prce- 
fedlus & Prceleflor Botanic . p. 648. 
XCI. An Hiflorical Memoir concerning a Genus oj 
Plants called Lichen by Michelli, Haller, and 
Linnaeus ; and comprehended by Dillenius under 
the Penns Ufnea, Coralloides, and Lichenoides : 
Pending principally to illuflrate their feveralUJes. 
Communicated by William Watfon, M.D. F.R.S. 
p. 6f 2. 
XCII. An Account of the fojjil Bones of an Allc - 
gator , found on the Sea-Jhore , near Whitby in 
Yorkfhire : In a Letter to John Fothergill, M. D. 
from Capt. William Chapman. p. 688.. 
XCIII. De rariori quadam Orthocerathis Specie, in 
Suecia reperta , tradlatus : in liter is a Nicholao 
de Himfel, M.D. Riga Livono, ad Gul. Watfon, 
M. D. R.S.S. p.692. 
XCIV. A further Account of the Effects of Elec- 
tricity in the Cure of fom e Difeafes : In a Letter 
from Mr. Patrick Brydone to Dr. Robert Whytt, 
Profefor of Medicine in the Univerfty of Edin- 
burgh, and F. R. S. p. 6 9 5^. 
XCV. An Account of the Black Afize at Oxford, 
from the Regift er of Merton College in that Uni - 
‘verfity. Communicated by John Ward, LL.D. 
With Jome additional Remarks. p. 699. 
XCVI. A Defcription oj the Plan of Peking, the 
Capital of China ; fent to the Royal Society by Fa- 
ther Gaubil, e Societate Jefu. Pranfated from 
the French. p. 704. 
XCV 1 1. An Attempt to improve the Manner of work- 
ing the Ventilators by the Help of the Fire-Engine. 
In a Letter to Tho. Birch, D. D. Secret. R. S.ffrom 
■Keane Fitz-G e raid, Eff, F.R.S. p/717. 
XCV 1 II. 
