MINERAL INDUSTRIES LIME AND LIMESTONf. ^I 



ida become very close grained and compact. In this condition the 

 hmestone is hard, approaching marble in appearance. Although 

 little used this phase of the limestone formation is capable of pro- 

 ducing a good building stone. 



Miami Oolite : — The Miami oolitic limestone has been used suc- 

 cessfully as a building stone at Miami. This formation extends 

 for some distance along the eastern border of the Everglades north 

 and south from Miami. As in the case of the other limestones 

 when first taken from the quarry it is relatively soft and easily 

 worked, but hardens upon exposure. The court-house, Halcyon 

 Hall hotel and some other buildings at Miami are constructed of 

 this rock. 



The limestones of the Everglades of Florida constitute a re- 

 source that will become valuable as that section of the state is 

 developed. In this connection may be included a brief paper on 

 the geology of this interesting region, prepared originally for the 

 State Drainage Commission, in which is included descriptions 

 and analyses of the several limestones that are found underlying 

 the Everglades. In making the examination of the exposures 

 along the canals and in Lake Okeechobee, May 19 to 23, 1914, a 

 small launch was used, placed at the writer's disposal through the 

 courtesy of the Chief Engineer of the State Drainage Commission. 



THE GEOLOGY OF THE EVERGLADES OF FLORIDA. 



The developments that are now in progress, and particularly 

 the extensive excavations that are being made in connection with 

 drainage operations, are rapidly opening up new territory in 

 southern Florida, affording the opportunity of making important 

 additions to our knowledge of the geology of that part of the 

 State. The canals from the Caloosahatchee River on the west, 

 through Lake Okeechobee, and thence through the Everglades to 

 New River and Miami on the east give almost complete exposures 

 of the underlying formations across the Everglades, the geology 

 of which was until recently practically unknown. In fact the geo- 

 logic observations previously made were confined to the borders 

 of the Everglades or to the banks of the streams leading out to 

 the east, south and west. 



Among these early observations were those of Buckingham 



