AMERICAN 
JOURNAL OF SCIENCE AND ARTS. 
[SECOND SERIES.] * 
Art. XIII.— Notice of the Pitch Lake of Trinidad ; by 
Mr. N. S. Manross. 
ecent falls 
au Spain ten 
Miles distant. , 
These mountains consist mainly of highly inclined and con- 
torted strata of talcose and. micaceous slates containing veins of 
Somewhat crystalline quartz. The flanks and spurs of the range 
however exhibit a dark blue limestone, much veined with white, 
in which there are caves of iderable extent. These so far as 
_ Stcoxp Sunies, Vol. XX, No, 59.—Sept, 1855. 20 
