378 



ington would collect the materials already obtained,, in order 

 to fix by calculation, I do not say the area of every 

 state and every territory, but the total area of the four great 

 natural divisions comprehended between the coast of the 

 Atlantic Ocean ,> the central chain of the Alleghanies, the 

 course of the Mississipi, the Rocky Mountains, and the Paci- 

 fic Ocean. 



The population in the English possessions in the neigh- 

 bourhood of the United States, is now perhaps one-seventh 

 greater than I supposed, in the table p. 142. It was computed 

 in 1814, in Lower Canada, 335,000 $ in Upper Canada, 

 95,000 5 in New Scotland, 100,000 $ in New Brunswick, 

 60,000 ; in Newfoundland and at Cape Breton, 18,000 ; 

 jn all, 608,000 inhabitants. {Carey and Lea, Historical, 

 Ckronologicaly and Geographical Atlas of America, 1822, N° 4.) 



In order to facilitate the reductions of surfaces, we shall 

 here repeat that a square marine league (20 to a degree), is 

 1T9716 English square miles (of 692 to a degree), or 

 1*5625 square French leagues (25 to a degree), or 0*5625 

 geographical square leagues (15 to a degree), or 9 Italian 

 square miles (60 to a degree). 



Note F. 



Occupied by astronomical determinations on the southern 

 frontier of the Spanish Guyanas, I had great interest, during 

 my travels, in collecting all that has any relation to the dis- 

 putes concerning the limits between the crowns of Portugal 

 and Spain. This information was necessary in order to com- 

 plete the memoir I addressed on my return from the Oroo- 

 noko, to the first secretary of state, Don Mariano Luis de 

 Urquijo (See above, Vol. v, p. 299, 413 5 Vol. vi, p. 351). 



