32 



Bulletin 30 



448 



ing page 10, Bulletin 29. It is separated from the main land by 

 a belt of salt marsh traversed by tidal rivulets. The highest 

 point of the Morro rises 825 feet above the sea. Columbus is 

 said to have named it Monte Cristi from the thorny bushes 

 crowning its summit. It was later called La Grange by the 

 French from a fanciful resemblance from certain viewpoints to a 

 huge barn. 



Heneken' s Co?idusions. — Colonel Heneken* first studied this 

 interesting hill in 1853. He notes that on the northern face the 

 base is of red sandstone, dipping N. W. by N. 7 , overlain con- 

 formably by blue fossiliferous shale and this by tufaceous lime- 

 stone. On the western face he observed the intercalation of blue 

 and yellow shales and noted that the latter appear a larger de- 

 velopment of the Cercado shales. He correlated the limestone 

 cap with the limestone capping the Samba Hills. In a section 

 from the Morro to Guaraguano Heneken gives the following : 



Tertiary 



L 4 

 5 

 6 



7 



Tufaceous limestone. f 



Shingle bed. 



Argillo-calcareous shales. 



Blue and green fossiliferous shales. 



Red sandstone, unfossiliferous. 



Micaceous schist. 



Limestone. 



Greenstone. 



Section of the Morro 



During our stay at Monte Cristi the north side of the Morro 

 was unsafe because of lurking bandits and rebels. Mr. Schmidt, 

 however, obtained a photograph of the northern end shown on 

 Plate 2 A. Our collections were made from the calcareous yellow 

 clays and the limestone of the southern side where the blue clays 

 are not present. The relation of the north and south sides could 



*Quart. Jour. Geol. Soc. London, vol. 9, pp. 125, 126, 1853. 



fThe name "Tufaceous" was later abandoned as analysis showed it to 

 be a misnomer. 



