5 *8 The Loess of North America. [July, 



tinctly stratified. Gives a list of six species of land and four species of fresh-water 

 shells, found fossil in the loess of that Siate. 



Smith, Dr. E. A.— Outline of the Geology of Alabama. (From Berney's Hand- 

 book of Alabama.) No date. pp. 67-^8. 

 A brief mention only of the loess an 1 the theory of Von Richthofen. Urges as 

 an objection to its subaerial deposition the existence only, in Alabama, of the loess 

 on the "immediate banks of streams." Mentions Tuomey's identification of the 

 loess on the Lower Tombigbee and Alabama. 



SWALLOW, G C— Second Annual Report of the Geological Survey of Missouri, pp. 

 69-76 (1855). 



soun. Swallow gave it the name of "Bluff Formation" (p. 74), which term he 

 employs throughout the volume. The origin is considered as Lacustrine. In an 



A very full and valuable criticism of the subaerial hypothesis. Considers sepa- 

 ately the four principal points made by Richthofen. Contains valuable lists of fos- 

 ils, and some novel observations on the depth to which roots penetrate the soil of 



' Even now we probably express the opinion of 'many student, of the loess when we 



Vailes, B. L. C— Agriculture and Geology of Mississippi. First Report, pp. 

 213-214(1554). 



Gives geographical distribution of the loess in Mississippi. Statement mule that 



forms. (This 



, Dr. C. A.— Geology of Iowa. Vol. 1 (1870), pp. 103-117, * n 

 erences in the sections devoted to county and regional geology, 

 loundiries of the Missouri river loess are described, together wit 



red from the Cretaceous and Tertiary strata of the Upper 

 able formations on the continent." In the Chemical Report, 



graphic and Geologic Featui 

 s not accompany the brochure. It contains a general 1 



