KEW rOXK MUSEUM 



r any purp [tiring large quantiti 



aw material. 



curious that the sole application of this material which 

 usually >r the manufacture of Portland cement, 



;. wn ii< [fi indeed an important application, still it is only 



rthy of consideration in the ease of very large deposits, that 

 is, those not less than feet thick and of at least 100 acre, area, 

 while deposits smaller than this are open to nearly all the uses to 

 which limestone can be put. 



