112 PROCEEDINGS OF THE BALTIMORE MEETING 



CARTERSriLLE POTASH SLATES; THEIR ECONOMIC RELATION TO CHEMICAL 

 AND INDUSTRIAL POST-WAR DEVELOPMENT 



BY T. POOLE MAYNARD 



(Ahstract) 



The Cartersville potash slates are of such composition, geographic extent, 

 thickness and easy accessibility, and liberation of the potash occurs at such 

 low temperatures that these, together with other factors which relate to de- 

 velopment, make possible the utilization of these materials as a source of 

 potash after the war is over. 



The presence of these deposits in the center of the area in the United States, 

 where 90 per cent of the potash is consumed, together with low cost of produc- 

 tion and relation to the source of the largest supply of the two chief acids, 

 nitric and sulphuric, used in chemical industries, will bring about both chem- 

 • ical and agricultural development, which will have a very important bearing 

 on the increase in production of agricultural products. 



The origin, nature of the deposits, methods of extracting the potash, and 

 history of development will be discussed. 



Presented by title in the absence of the author. 



ANTICLINAL THEORY, AS APPLIED TO SOME QUICKSILVER DEPOSITS 

 BY JOHAN AUGLTST UDDEN 



(Al)stract) 



In the Terlingua quicksilver district cinnabar ore occurs in its larger distri- 

 bution in structures, such as anticlines, domes, and arrested monoclines, at 

 stratigraphical levels where there is a change from porous rock below to more 

 impervious formations above. Accumulation seems to have been governed by 

 conditions similar to those which result in the accumulation of oil and gas, 

 with this difference, that it occurs in favorable structures only in places where 

 there has been Assuring or intrusion of igneous material. Most of the ore is 

 found in joints, fissures, fault breccias, and contacts. These evidently have 

 served as channels through which the mercurial vapors or, more probably, 

 their solutions found outlet upward. The richest deposits have been found at 

 horizons where the change between underlying and overlying rocks has been 

 greatest, such as near the contact between the Georgetown (Edwards) and the 

 Del Rio clay and between the Buda and the basal parts of the Eagle Ford. 

 Conditions are described as they are known in four mines now worked and in 

 four of the more important prospects in the area. 



Presented in abstract from notes. 



CRYSTALLINE GRAPHITE DEPOSITS OF ALABAMA 

 BY W. F. PROUTY 



i Abstract) 



The development of the crystalline graphite industry in Alabama has been 

 phenomenal. In 1914 there were three producing plants. At the present time 



