ee a ee a ee 
W. M. Gabb on the Vegetation of Santo Domingo. 129 
is consequently a coarse gravel, gradually changing into a clay 
or sand, as the distance from the old mouth and coast line in- 
creases. Still further, where shore influences fade out, the same 
strata are continued, but instead of appearing as a loose gravel, 
they become calcareous, and, in the then deep sea, change to 
beds of coral limestone. 
puntia, a small Echinocactus is most common here. _ Here 
— reappears the lignum-vite with considerable quantities of 
Stic. 
