PHYSICAL ASPECT. 



149 



not analyzed, but similar to the waters of Guana- 

 bacoa. 



Camujiro, two and a half leagues from Puerto 

 Principe. The water is highly charged with iron, 

 and being very tonic, is highly esteemed. 



The waters of several streams in Cuba are reputed 

 to possess mineral qualities, and to produce medi- 

 cinal effects upon bathers. 



We close this imperfect view of the geology and 

 mineral resources of Cuba with the following analysis 

 of some of the celebrated Tobacco lands, as given by 

 Don Ramon de la Sagra. 



San Diego de los Banos, two localities : — 



Organic matter , 18.40 23.20 



Silica 70.80 68.20 



Lime 0.40 4.60 



Alumina 0.40 vestiges. 



Oxide of iron 10.00 4.00 



100.00 



100.00 



Vuelta de Abajo, two localities : 



Organic matter 

 Silica 



86.40 



9.60 



90.80 



4.60 



Lime 



0.00 



vestiges. 



Alumina 



0.68 



3.40 



Oxide of iron 



1.92 



1.20 



Loss 



1.40 



0.00 



100.00 



100.00 



