* 



PHYSICAL ASPECT. 147 



success. Yeins of solidified asphaltum (beturi) exist in 

 many places. Several analyses have been made of 

 this substance ; that of Guanabacoa, near Havana, 



giving — 



Yolatile matter 63 



Carbon 35 



Ashes and residuum 2 



100 



It burns with great flame and smoke, but cakes 

 very much, and leaves a light, bulky coke. Its spe- 

 cific gravity is 1.14. Specimens from the veins near 

 Guanabo were analyzed by Senor Sagra, in 1828, 



giving — 



Volatile matter , , 28 



Carbon GO 



Ashes and residuum , . . . 12 



100 



Specific gravity, 1.18. 



Marble is found in great abundance in many 

 places. 



Loadstone exists also in large quantities. 

 Moulding sand, of fine quality, abounds in Eueva 

 Filipina. 



Mineral springs are found in many parts of the 

 island, some of which have great renown among the 

 inhabitants for their sanative properties. The most 

 celebrated are the following: 



