The CONTENTS. 
sic all mute and deafj by Richard 
Brocklesby M. D. F. R. S. 233 
XV . An Account of the poifonous Root lately 
found mixed among the Gentian 5 by the fame. 
240 
XVI. An Account of large fubterraneous Ca- 
verns in the Chalk Hills near Norwich ; by 
Mr, Win. Arderon, F. R, S. comprifed in 
a Letter from Mr. Henry Baker F. R. S. 
to the Prefid ent. 244 
XVII. An Account of fome Obfervations and 
Experiments made in Sibiria, cxtraEled 
from the Preface to the Flora Sibirica .five 
Hiftoria Plantarum Sibirise cum tabulis 
xri incifis. Audi. 2). Gmelin .ChemM Hift. 
Nat . Prof Petropoli 174 7. 4 to. Vol I. by 
John Fothergill, M, Z). Lie. Colleg. Med. 
Londin. ^248 
XVIII. Novum reique medics utile EleEtr •(- 
citatis inventum exponit Joannes Henricus 
Winkler , Profefior Lipfenfs, et Societatis 
Regalis Londinenfs Sodalis. ' 262 
XIX. A Letter from Mr. Henry Baker 
F. R. S. to the Prefident, concerning fever al 
Medical E xperipients of Ele&ricfiy . 270 
