ANNALS OF PHILOSOPHY ; 
OR, MAGAZINE OF 
CHEMISTRY, MINERALOGY, MECHANICS, 
NATURAL HISTORY, 
AGRICULTURE, AND THE ARTS. 
BY THOMAS THOMSON, M.D. F.R.S. L. & E. F.L,S. 
REGIUS PROFESSOR OF CHEMISTRY IN THE UNIVERSITY OF GLASGOW, 
MEMBER OF THE GEOLOGICAL SOCIETY, OF THE WERNERIAN SOCIETY, AND OP THE 
IMPERIAL MEDICO-CHIRURGICAL ACADEMY OF PETERSBURGH, 
VOL. XIII. 
JANUARY TO JUNE, 1819. 
DPondon : 
Printed by C. Baldwin, New Bridge-street ; 
FOR BALDWIN, CRADOCK, AND JOY, 
«< 
47, PATERNOSTER-ROW. 
— 
18/9. 
