94 
dry in the winter and more or less submerged in the summer. 
It consists of a rock foundation covered with a paste-like calca- 
reous mud, which supports stunted shrubs and inconspicuous 
S 
The floral features'of Andros are more interesting than its 
topography. Andros lies at the center of an ellipse which in- 
cludes the main chain of the Bahamian archipelago, the middle 
portion of Cuba, and tropical Florida within its boundary. On 
Fig. 19. Northern bank of Deep Creek, about one mile from the mouth. This 
shows a ‘section through the rock backbone of Andros. The plant covering is 
coppic 
the one hand, being thus surrounded, its flora partakes of many 
elements of the flora of these neighboring regions; and, on the 
other hand, in spite of having individual characters in its topog- 
raphy in addition to its relative large size and isolation, it appar- 
ently supports a very limited endemic flora. 
Interesting revelations confronted us at each successive station 
as we advanced. Deep Creek was our southernmost base. This 
