11 
CONTENTS. 
Art. VII. Account of the Methods employed for Examining 
the Population Returns of Plymouth for the year 
1821; and the consequent discovery of the Re- 
gistered Seamen having been included in the 
Census of 1811, contrary to the terms of the Act 
of Parliament relating to the Population of the 
United Kingdom. By George Harvey, Esq. 
M.A.S., M.G.S., &c. - - 270 
VIII. On the Crystallographic Discoveries and Systems of 
Mohs and Weiss. In a Letter from Frederick 
Mohs, Esq. Professor of Mineralogy at Frey berg, 
to Professor Jameson, in Answer to that of Pro- 
fessor Weiss, in the last Number of this Journal, 27 5 
IX. Account of the Cavern and Natural Glacier of the 
Rothorn, called the Shafloch or Sheep’s Hole. 
By M. Dufour, Lieutenant-Colonel of Engineers, 290 
X. Gleanings of Natural History, gathered on the 
Coast of Scotland during a voyage in 1821. By 
the Rev. John Fleming, D.D. F.R.S.E. M. W.S. 
&c. In a Letter to Professor Jameson, - 294? 
XI. On the order of the Appearance and Progress of the 
Aurora Borealis. By the Rev. James Farquhar- 
son, Alford, - 303 
XII. Journal of a Tour to the Coast of the Adriatic Sea, 
and to the Mountains of Carniola, Carinthia, Ty- 
rol, Saltzburg and Bohemia, undertaken chiefly 
with a view to the Botany and Entomology of 
those countries. By Dr David Henry Hoppe 
and Dr Henry Hornschuch. (Continued from 
p. 149.) - - - 311 
XIII. Description of a New Reflecting Microscope. By 
David Brewster, LL. D. F. R. S. Lond. & Sec. 
R. S- Edinburgh, &c. - - 326 
XIV. Remarks on the Increase of the Population of the 
United States and Territories of North America, 
with Original Tables, deduced from the Ameri- 
can Population Returns, to illustrate the various 
Rates of Increase in the White Population and 
Slaves, and also the Comparative degrees in which 
Agriculture, Commerce and Manufactures pre- 
vail. By George Harvey, Esq. M.G.S., M. A.S., 
&c. (Continued from p. 55.) - - 328 
