22 University of Michigan 



vii'gulatus was more numerous at its head, near the saddle 

 between Seroes Palomba and Baha Hoendoe (211.9 meters). 



Chl7c. Landhuis Knip {ll-B. ■ L69° 9.33', 12° 20.77'). The 

 country house of plantation Knip is on a spur (40.6 meters) 

 of Knipberg. A few shells were picked up around the out- 

 houses. 



Chl7d. Irrigated valley (17-1; L69° 9.59', 12° 21.11'). The 

 hof je that ends in Plaja Abau is mainly planted with sorghum, 

 but includes a few clumps of fruit trees and bananas. 



Ch20. Sint Christoffelherg (20-P; L69° 8.24', 12° 20.30'). 

 Near the summit of the western side of this hill, the slope is 

 very steep, with many small cliffs, but humus and leaves have 

 collected on the ledges where trees and brush can gain a foot- 

 hold. 



Klein-Cur-agao 



This low, comma-shaped island (fig. 2) is less than 2 1/2 

 kilometers long. The surface is practically flat, and probably 

 nowhere attains an altitude of much over 5 meters; I was 

 told that the waves break over it during the heavier storms. 

 It is very barren and arid, like the eastern shores of the larger 

 islands, and the sparse vegetation is entirely composed of 

 halophytes. Except for the phosphate deposits on the western 

 shore, the bare limestone rocks are exposed everywhere, and 

 form low sea-cliffs along the eastern side and at the ends of 

 the island. No land molluscs were found. 



Aruha 



The island of Aruba is the smallest and most arid of the 

 three main islands. The limestone is mainly restricted to the 

 southwestern side and the southeastern end, where the more 

 recent layers form quite extensive, rather featureless areas, 

 which usually slope up quite gently from the low (1 to 2 

 meters) shore cliffs. As the older limestone is not so generally 

 exposed, high escarpments are rarely formed, although those 

 of Scroe Canashito are conspicuous exceptions, while the east- 

 em escarpment near Boca Grandi (fig. 1-3, C), and the sides 



