449 



Dominican Sections — Maury 



33 



not be worked out at the time for the reason mentioned, 

 following is a generalized section of the southwest face. 



Feet 



The 



825- 



675 



25 



Sea level 



J ! 



_J L 



I 



J ! 



"1 1 



Limestone cap 

 Yellow and soft 

 above, white below 

 A few corals aud 

 casts of molluscs 



Alternating 

 series of 

 clays, 

 limestones 



Fossils chiefly 

 about the 

 center 

 All in the 

 form of casts 



Alternation of 

 beds less marked 

 towards the base 



Hard, bluish, 

 sandy clay. 



Fig. 1 Section of El Morro 

 The Basal Sandy Clay. — This probably represents Heneken's 

 ' 'red sandstone." Gabb* emphatically denied the existence of 

 Heneken's red sandstone and restricted it to Heneken's imagina- 

 tion. The only sandstone observed by our party was that out- 

 cropping in the town of Monte Cristi and upon which the fort is 

 built. The dip of this sandstone is very high. It is really gray 

 but often reddish or yellowish on the surface from oxidation. Ap- 



*Trans. Amer. Phil. Soc, vol. 15, p. 95, 1873. 



