PROGRESSIVE DISCOVERIES AND IMPROVEMENTS
REGIUS PROFESSOR OF NATURAL HISTORY, LECTURER ON MINERALOGY, AND KEEPER OF
THE MUSEUM IN THE UNIVERSITY OF EDINBURGH ;
Fellow of the Royal Societies of London and Edinburgh; of the Antiquarian, Wernerian and Horti-
cultural 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; Honorary Member
of the Asiatic Society of Calcutta ; of the Royal Geological Society of Cornwall, and of the Cam-
bridge Philosophical Society; of the York, Bristol, Cambrian, Northern, and Cork Institutions ;
of the Natural History Society of Northumberland, Durham, and Newcastle; of the Royal So-
ciety of Sciences of Denmark; of the Royal Academy of Sciences of Berlin; of the Royal Aca-
demy of Naples; of the Imperial Natural History Society of Moscow; of the Imperial Phar-
maceutical Society of Petersburgh ; of the Natural History Society of Wetterau ; of the Mine-
ralogical Society of Jena; of the Royal Mineralogical Society of Dresden; of the Natural His-
tory Society of Paris; of the Philomathic Society of Paris ; of the Natural History Society of
Calvados; of the Senkenberg Society of Natural History; of the Society of Natural Sciences and
Medicine of Heidelberg; Honorary Member of the Literary and Philosophical Society of New
York; of the New York Historical Society; of the American Antiquarian Society; of the Aca.
demy of Natural Sciences of Philadelphia; of the Lyceum of Natural History of New York; of
the Natural History Society of Montreal, &c. &c.
OCTOBER 1830... APRIL 1831.
TO BE CONTINUED QUARTERLY.
PRINTED FOR ADAM BLACK, NORTH BRIDGE, EDINBURGH ;
• .it AND LONGMAN, REES, ORME, BROWN, & GREEN,