350 Population of France in lm2. [MAt, 







Size in 



Departments. 



Popi'j^tion. 



Square Miles. 



37 Sarre 



273,569 



1363*1 





202,822 



1428-5 





63,533 



1381-0 





431,438 



3112-8 





352,214 



1004\1 





300,709 



2264-2 





205,832 



647-8 





192,670 



1549-7 





505,387 



2624-2 



Total 



13,951,466 



61049-7 



— —-^ 





28,786,911 



147*973 





13,951,466 



61,049-7 



Total 



42,738,377 



209,022-7 



InhaUtants to the Square Mile, 



In Old France 194-5 



In the Usurped Countries 228-5 



Tlie Jiopulation of England is 196*3 persons to the square 

 mile ; so that it is more populous than Old France ; but much 

 less so than the usurped countries, which consist of the Low 

 Countries and portions of Italy, by far the best peopled portions 

 in Europe. 



Article IV. 



On Feins. By Thomas Thomson, M.D. F.R.S. 



It is generally known that the globe of the earth, as far as its 

 structure has been examined, is composed of rocky Ui^sses, 

 which, it would seem, extend quite round the globe of the 

 earth, enclosing it somewhat like the coats of an onion. These 

 rocky masses are composed in some cases of a single mineral 5 

 as limestone^ serpeiitine^ quartz; in others, two or more minerals 

 are mixed together in the same rock. Thus granite is composed 

 of felspar^ quartz^ and mica ; and greenstone of felspar and 

 hornblende. Ail the different rocks distinguished by a name 

 amount to about 50; and as far as observation has yet gone they 

 lie over each other in regular order. Werner, to whom we are 

 indebted for the iirst classification of rocks, has divided them 



