2 '2 6 Scien tijr'c In tell! gen cc. 



mentary to the report of Woodruff (U. S. Geo]. Surv., Bulletin 

 452). Geographic and stratigraphic data have heen given ample 

 consideration (pp. 1-52). n. k. g. 



5. Maryland Geological Survey ; William Bullock Clark, 



State Geologist. 1911. — This Journal has recently received the 

 following publications of this Survey : 



Prince George's County. Pp. 251 ; 12 plates, :? figures, atlas 

 in separate case accompanying report. This contains the follow- 

 ing papers: Development of knowledge concerning the physical 

 features of Prince George's County with bibliography ; Physi- 

 ography of Prince George's County ; Geology of Prince George's 

 County; Mineral Resources of Prince George's County; by 

 Benjamin L. Miller. Also the following : Soils of Prince 

 George's County, by J. A. Bonsteel ; Climate of Prince George's 

 County, by Wm. H. Alexander; Hydrography of Prince George's 

 County, by F. H. Newell ; Magnetic Declination in Prince 

 George's Connty, by L. A. Bauer ; Forests of Prince George's 

 County, by F. \V. Besley. 



Volume IX of the general reports. Pp. 348 ; 26 plates, 8 

 figures. This contains : Third Report on State Highway Con- 

 struction for period from January 1, 1908 to January 1, 1910, by 

 W. W. Crosby ; Summary Final Report on the work of the 

 Highway Division of the Maryland Geological Survey, 1898- 

 1910, by Wm. B. Clark ; Fourth and Final Report on State 

 Highway Construction, to June 1, 1910, by W. W. Crosby ; 

 Report on the Iron Ores of Maryland with an account of the Iron 

 Industry, by Joseph T. Singewald, Jr. ; Report on the lines of 

 Equal Magnetic Declination in Maryland for 1910, by L. A. 

 Bauer. 



Report on the Cretaceous Geology and Paleontology of Mary- 

 land. Pp.622; 97 plates, 15 figures. This contains the following: 

 The Lower Cretaceous deposits of Maryland, by Wm. B. Clark, 

 A. B. Bibbins, and Edw. W. Berry ; Lower Cretaceous Floras 

 of the World, by Edw. W. Berry ; Correlation of the Potomac 

 Formations, by Edw. W. Berry ; Reptilia of the Arundel Forma- 

 tion, by Richard Swann Lull ; Sj'stematic Paleontology, Lower 

 Cretaceous, by R. S. Lull, W. B. Clark, E. W. Berry, h. e. g. 



6. Cape of Good Hope, Department of Mines, 15th Annual 

 Report of the Geological Commission, 1910 ; A. W. Rogers, 

 Director. Pp. 142, vi, maps and figures. Cape Town, 1911. — 

 The report of the Cape of Good Hope Geological Commission for 

 1910, delayed in publication, reveals, as usual, a large amount of 

 careful field and office work, both reconnaissance and detailed. 

 The unsatisfactory features of the present report are inadequate 

 maps and illustrations. Certainty for foreigners, and probably 

 also for natives, the plan of publication adopted by the New 

 Zealand Survey or the U. S. Geological Survey is much more sat- 

 isfactory. The report contains the following papers: (1) Survey 

 of parts of Beaufort West, Fraserburg, Victoria West, Suther- 

 land, and Laingsburg, by the Director, A. W. Rogers, interesting 



