82 2 RECENT PUBLICATIONS 



Glaciologie, t. VII. 1913, pp. 191-202. Commission Internationale 



des-Glaciers. Berlin: Borntraeger Freres. 1913.] 

 — Rice, G. S., Jones, L. M., Clement, J. K., and Egy, W. L. First Series 



of Coal-Dust Explosion Tests in the Experimental Mine. [Bureau of 



Mines, Bulletin 56, Washington, 1913.] 

 — Rogers, A. W., and Du Toit, A. L. An Introduction to the Geology of 



Cape Colony. With a Chapter on the Fossil Reptiles of the Karroo 



Formation, by Professor R. Broom. [Longmans, Green & Co., London, 



1909.] 

 — Ruthven, a. G. The Herpetology of Michigan. With Memoranda 



toward a Bibliography of the Archaeology of Michigan, by Harlan I. 



Smith. [Michigan Geological and Biological Survey, Publication 10. 



Biological Series 3. Published as a part of the Annual Report of the 



Board of Geological Survey for 1911. Lansing, 1912.] 

 — Sacco, Federico. L'Awenire della Geotermica Applicata. Estratto 



dalla Rivista mensile di Sc. Nat. "Natura," Vol. III. [Pavia: Premiata 



Tipografia Successori FroteUi Fusi, Largo di via Roma, N. 7, 191 2.] 

 — Sanford, S. The Underground Water Resources of the Coastal Plain 



Province of Virginia. [Virginia Geological Survey, Bulletin 5. Prepared 



in Co-operation with the U.S. Geological Survey. Charlottesville, 1913.] 

 — ScHREiNER, O., AND Brown, B, E. Occurrence and Nature of Carbonized 



Material in Soils. [U.S. Bureau of Soils, Bulletin 90. Washington, 1912.] 

 , AND Skinner, J. J. Nitrogenous Soil Constituents and Their Bearing 



on Soil Fertihty. [U.S. Bureau of Soils, Bulletin 87. Washington, 1912.] 

 — Seismological Society of America", Bulletin of the. Vol. Ill, No. i, March, 



1913. Vol. Ill, No. 2. [Stanford University, California, 1913.] 

 — Sellards, E. H. Production of Phosphate Rock in Florida during 



1912. [From the Fifth Annual Report, Florida State Geological Survey, 



pp. 291-94, 1913.] 

 — Shannon, C. W. The Trees and Shrubs of Oklahoma. [Oklahoma Geo- 

 logical Survey, Circular 4, Norman, 1913.] 

 — Shimer, H. W., and Powers, Sidney. A New Sponge from the New Jersey 



Cretaceous. [No. 2019. From the Proceedings of the United States 



National Museum, Vol. XL VI, pp. 155-56, with Plate 7. Publishe-^' 



December 6, 1913. Washington, 1913.] 

 — SiiOREY, E. C. Some Organic Soil Constituents. [U.S. Bureau of Soils 



Bulletin 88. Washington, January 8, 1913.] 

 ■ — Simpson, E. S., and Gibson, C. G. Contributions to the Study of the Geol- 

 ogy and Ore Deposits of Kalgoorlie. East Coolgardi" 'Coalfield. Parti. 



[Geological Survey of Western Australia, Bulletin 42. Perth, 191 2.] 

 — Smith, George Otis. Thirty-third Annual Report of the Director of the 



U.S. Geological Survey to the Secretary of the Interior, for the Fiscal 



Year Ended June 30, 1912. [Washington, 1912.] 



