rock was noticeable in drilling preparatory to blasting. The 

 blast shattered the top of a subaqueous cavern! Stalactites 

 varying from the diameter of a finger to over four feet were 



feet stalactites, as the shock of the dynamite had broken them 

 Yet the sections of the stalactites indicate great length and they 



the Florida Keys stand and the reef along the eastern coast out 

 to the Gulf Stream, as well as, most likely, much of the present 

 bed of the Gulf of Mexico adjacent to the western coast, was 







