560 Scientific Intelligence. 



area the number of coal beds is '-probably greater than elsewhere 

 in the Appalachian coal field," and the conditions for a detailed 

 study of the stratigraphy appear to be unusually favorable. The 

 columnar section includes the Lee, Norton, Wise and Harlem 

 formations, and the structure sections shown in Plate III indicate 

 clearly the geological factors with w r hich the coal industry is 

 concerned. h. e. g. 



2. Florida State Geological Survey ; E. H. Sellards, State 

 Geologist. Fifth Annual Report. Pp. 306, pis. 14, figs. 17, 

 2 maps. Tallahassee, 1913. — The report of the Florida Geological 

 Survey for 1913 contains two articles of more than local import- 

 ance : Origin of the Hard Rock Phosphate Deposits by E. H. 

 Sellards, and Artesian Water Supply of Eastern and Southern 

 Florida by E. H. Sellards and Herman Gunter. Dr. Sellard's 

 views regarding the origin of phosphate differ from those of 

 Wyatt, Pratt, Cox, Darton, Dall and Eldridge and rest on obser- 

 vations which indicate that formations later than the Vicksburg 

 formerly extended across the phosphate fields. These formations 

 " disintegrated in situ and the phosphate itself is derived from 

 the phosphate originally widely disseminated through these 

 formations, circulating waters being the agency by which the 

 phosphate has been carried to its present location." h. e. g. 



3. Illinois Geological Survey / F. W. DeWolf, Director. 

 Bulletin No. 22, The Oil Fields of Crawford and Lawrence 

 Counties; by Raymond S. Blatchley. Pp. 442, pis. IA-XXXI, 

 8 maps in case. Urbana, 1913.— In addition to an exclusive 

 treatment of the economic aspects of the oil fields of southeastern 

 Illinois, the author of Bulletin No. 22 discusses the stratigraphy 

 of the Paleozoic section, and presents much detail regarding 

 structural relations. The oil of the area is believed to have its 

 origin in the plants entombed in the strata of Carboniferous age. 



H. E. G. 



4. The Ohio and Mississippi Floods of 1912 / by H. C. 

 Frankenfield. Bulletin Y, U. S. Department of Agriculture, 

 Weather Bureau. Issued December 27, 1913. Pp. 25, diagrams 

 I- VI, precipitation charts 35. — In the Ohio and in the lower 

 Mississippi valleys years without floods are exceptional. Since 

 1815 stages of marked high water have been reached on the 

 average once in six years. In the Mississippi above Cairo the 

 average is once in nine years. The precipitation which directly 

 causes the floods appears to be due to the " Southwest Type " of 

 storm, the features of which are fairly well known. The flood of 

 1912 ranks first in the flood history of the lower Mississippi Val- 

 ley in points of height of water, duration and amount of damage. 

 In the analysis given by Professor Frankenfield the causes of the 

 flood, its origin and progress, its crest stages, and the effect of 

 levee construction, are treated in detail, and illustrated by numer- 

 ous charts. The loss or damage caused, by the flood of 1912 is 

 estimated at over 878,000,000. h. e. g. 



5. New Zealand Geological Survey; P. G. Morgan, Director. 

 Bulletin No. 16 {New Series). The Geology of the Aroha Sub- 



