NOTES ON THE JAMAICA EARTHQUAKE 705 
ROCK AREAS 
Land slides —The rock areas near Kingston are confined principally 
to the mountains, the narrow border of coastal plains being of uncon- 
solidated materials. In the rock areas the surface is composed of 
Fic. 4.—View of large spring (400 gallons per minute) resulting from rock frac- 
tures in soft limestone at Rockfort quarry. (Photo by Fuller.) 
disintegrated rock, bowlders of disintegration, etc., forming a mantle 
or talus over the hillsides. The slopes in many instances are very 
steep, and as a result of the earthquake many bowlders and avalanches 
were precipitated down the mountain sides, leaving great bare scars 
on their faces. In many cases trails were obliterated and roads 
ruined by slipping or by coverings of débris and, as already mentioned, 
