354 Scientific Intelligence. 



physiographic-biologic study of a problem of general scientific 

 interest. The conclusion is reached that the interior basin was 

 the center of origin of forms found both west and east of the 

 Appalachians and that " the Atlantic side received its forms 

 secondarily by migration from the interior basin." h. e. g. 



4. Graphite Deposits of Pennsylvania • by Benjamin L. 

 Miller. Pp. 147 ; 17 pis. Topogr. Geol. Surv. Penn., Report 

 No. 6. Harrisburg, 1912.— Following a discussion of the history, 

 properties, origin, occurrence, distribution, and uses of graphite 

 in general (pp. 3-66), Professor Miller describes in detail the 

 scientific and commercial aspects of the individual mines in 

 Chester, Berks, Lehigh, and Bucks Counties. h. e. g. 



5. Geological Survey of Neio Jersey, Henry B. Kummel, 

 State Geologist. — The New Jersey Survey, strengthened by the 

 addition of M. W. Twitchell, geologist, continues to render effi- 

 cient service to its state by publishing contributions of educa- 

 tional and economic value. Refinements of topographic surveys, 

 soil mapping, ground water investigations, tests of road materials, 

 and archeological research, and a special field study of the Eocene 

 occupied the attention of the Survey staff during 1912. The 

 report on the Pleistocene of southern New Jersey, by R. D. 

 Salisbury, is in process of publication. Among the papers issued 

 during the past year are: Bulletins 8 and 9, noticed on p. 78, vol. 

 xxxvi; also Bulletin 10, The mechanical and chemical composi- 

 tion of the soils of the Sussex area, by A. W. Blair and Henry Jen- 

 ning (110 pp.); Bulletin 11, The Mineral Industry of New Jersey 

 for 1912, by M. W. Twitchell. (43 pp.) h. e. g. 



6. XT. S. Geological Survey, Geologic Atlas of the United 

 States, Niagara Folio, New York ; by E. M. Kindle and Frank 

 B. Taylor. 1913. Pp. 28; 5 maps, 3 plates, bibl.—The 

 Niagara Folio has been prepared with the care and fullness com- 

 mensurate with the important place which this area occupies in 

 the geologic history of North America. The geologic interpreta- 

 tion involves mainly stratigraphic and physiographic studies and 

 the standing of the authors in their respective fields insures ade- 

 quate presentation as well as scientific accuracy. The publication 

 of this folio will relieve the geologist and layman alike from the 

 necessity of examining the voluminous literature relating to 

 Niagara which has accumulated during a century of study. 



H. E. G. 



7. Union of South Africa, Mines Department. Annual 

 Reports for 1912. Part IV, Geological Survey. Pp.188. Pis., 

 maps, sections, 1913. — The Cape Geological Commission has 

 become amalgamated with the Geological Survey of the Union of 

 South Africa, thus providing a larger force engaged in attacking 

 the problems presented by the southern j>ortion of the Continent. 

 The work of the geologists of the separate surveys, — Kynaston, 

 Mellor, and Hall in the Transvaal ; Humphrey in Natal ; Rogers 

 and DuToit in the Cape Province, has furnished solutions for 

 many problems in stratigraphy, structure and economic geology ; 



