REVIEWS 263 



methane, and carbon monoxide) with a heating value of 450 B.T.U.'s 

 per cubic foot; this is a higher value than producer gas or Mond gas, but 

 lower than coal gas or natural gas. 



In general it appears that the chief use to which Louisiana (and 

 probably all Gulf Coast) lignite can be put is in the briquetting of the 

 carbonized lignite, with the recovery of the tar and ammonia as by- 

 products and the utilization of the gas in producing electric power. Such 

 a use avoids the difficulties involved in shipping and storing the com- 

 bustible fuel, and makes available to the Gulf States, where hydrauHc 

 power is not always obtainable, a cheap source of electricity. 



The report, although in a large measure a compendium of other works 

 on the subject, presents a series of original and very careful fuel analyses, 

 and is a most valuable addition to the scanty information on the subject 

 of the geology and technology of utilizing Louisiana lignites. 



C. H. B., Jr. 



A Glossary of the Mining and Mineral Industry. By Albert H. 

 Fay. U.S. Bureau of Mines, Bulletin 95. Pg. 754. Wash- 

 ington, 1920. 



This glossary constitutes a noteworthy contribution to mining 

 Uterature. It contains about 20,000 terms; these include both technical 

 and purely local terms, relating to metal-mining and coal-mining, 

 quarrying, and the recovery of petroleum and natural gas, as well as 

 many metallurgical terms. It includes also the names of useful and 

 important common minerals and rocks, and geological terms. The 

 glossary presents, in a single comprehensive volume, essentially all of 

 the terms in use in the mineral industries in English-speaking countries, 

 together with most of the Spanish terms in use in the United States and 

 in Latin America. In addition it includes terms relating to ceramics 

 and glass-making, foundry practice, railway and building construction, 

 electrical installation and power-plant equipment, and chemical terms 

 relating to metallurgical practice. E. S. B. 



Geology of the Yellow Pine Cinnabar District, Idaho. By E. S. 



Larson and E. C. Livingston. U.S. Geological Survey, 



Bulletin 715 E. Pp. 12. Washington, 1920. 



The Yellow Pine cinnabar district, in Valley County, Idaho, is 



about 70 miles from the town of Cascade. The cinnabar ore bodies 



appear to be in irregular lenses or chimneys of silicification in limestones 



which have been intruded by dikes and irregular bodies of rhyolite 



