22 



BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 



From the top of Cave Point, about twenty feet above high-water mark, 

 a road leads at right angles to the shore line to Lake Killarney (Plate 

 X. Fig. 2). The road runs nearly level the whole way to the lake ; the 

 country is covered with pines and clumps of palmettos until we strike 

 the mangrove swamp which forms the edge of the lake. Lake Killarney 

 is full of mangrove islands, forming very pretty vistas between their 

 headlands, and occupies a shallow sink between two short ranges of 

 seolian hills, similar to the one forming Lake Cunningham. 



The bluffs at Cliftou, which form the vertical cliffs of the southwestern 

 extremity of the island, are the termination of the seolian range of hills 

 extending nearly parallel to the south shore. This range gradually re- 

 cedes from the shore, and the cliffs die out and are replaced by a long 

 beach line, which extends nearly unbroken to the southeastern end of 



COW AND BULL. 



the island. At Clifton these cliffs are eaten in more or less by cav- 

 erns and fissures both to the east and west of Moss Hill, and are admi- 

 rable examples of the effect of the action of the sea upon aeolian rock. 

 The constant pounding of the ordinary swell breaks off large blocks, 

 which in their turn break into smaller blocks and are thrown up in the 

 season of the hurricanes above high-water mark, forming a stone wall 

 along the coast line similar to those to be seen in other parts of the 

 Bahamas. 



Along this part of the shore there are many sea-holes and pot-holes, 

 extending from the surface to low-water mark, or even below. Many of 

 these irregular wells or caverns are from twenty to twenty-five feet deep, 

 and when occurring in high cliffs, or hillsides farther inland, as on Long 

 Island, from a hundred and fifty to two hundred or more feet in height, 



