THE 
EDINBURGH 
PHILOSOPHICAL JOURNAL, 
EXHIBITING A VIEW OF 
THE PROGRESS OF DISCOVERY IN NATURAL PHILOSOPHY, 
CHEMISTRY, NATURAL HISTORY, COMPARATIVE ANATOMY, 
PRACTICAL MECHANICS, GEOGRAPHY, NAVIGATION, 
STATISTICS, AND THE FINE AND USEFUL ARTS, 
OCTOBER 1. 1825 to APRIL 1. 1826. 
CONDUCTED BY 
ROBERT JAMESON, 
REGIUS PROFESSOR OF NATURAL HISTORY ,ArEtrTURER oN MINERALOGY, AND KEEPER OF 
THE MUSEUM IN THE UNIVERSITY OF EDINBURGH ; 
Fellow of the Royal, Antiquarian, and Wernerian Societies of Edinburgh; Honorary Member of the 
Royal Irish Academy, and of the Royal Dublin Society ; Fellow of the Linnean and Geological 
Societies of London ; of the Royal Geological Society of Cornwall, and of the Cambridge Philo- 
sophical Society ; of the York, Bristol, Cambrian, and Cork Institutions ; of the Royal Society 
of Sciences of Denmark ; of the Royal Academy of Sciences of Berlin ; of the Royal Academy of 
Naples ; of the Imperial Natural History Society of Moscow ; of the Imperial Pharmaceutical 
Society of Petersburgh ; the Natural History Society of Wetterau ; of the Mineralogical Society 
of Jena ; of the Royal Mineralogical Society of Dresden ; of the Natural History Society of Paris ; 
of the Philomathic Society of Paris ; of the Natural History Society of Calvados ; of the Senken- 
berg Society of Natural History ; Honorary Member of the Literary and Philosophical Society of 
New York; of the New York Historical Society; of the American Antiquarian Society; of the 
Academy of Natural Sciences of Philadelphia ; of the Lyceum of Natural History of New York, 
Sfc. Sfc. 
TO BE CONTINUED QUARTERLY \ j CW- ? A/-' 
VOL. XIV. 
STX' 
EDINBURGH : 
PRINTED FOR ARCHIBALD CONSTABLE & CO. EDINBURGH | 
AND HURST, ROBINS^ & CO. LONDON. 
1826 \ 
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