484 



REPORT OF NATIONAL MUSEUM, 1904. 



the main reason given for such action being an overvaluation of the 

 Indiana coals on the part of Brown. The report, it should be men- 

 tioned, was subsequently published in the report of the board of 

 agriculture. 



. In 1852, in compliance with a resolution of the United States Senate, 

 Capt. R. B. Marcy was directed to proceed "without unnecessary 



dela} 7 " to make an examination 



of the upper Red River and the 



country immediately bordering 



upon it from 



Cache Creek 

 to its sources. The officers of 

 the expedition, which left Fort 

 Belknap, Texas, on the 2d of 

 May, consisted of Captain 

 Marc} 7 , in charge; Bvt. Capt. 

 George B. McClellan, U. S. En- 

 gineer; and Dr. G. G. Shumard, 

 the last named, in addition to 

 his duties as surgeon, acting as 

 naturalist. The report sub- 

 mitted formed an octavo vol- 

 ume of 820 pages with 65 plates, 

 of which 25 may be considered 

 as geological, 6 of these being 

 of invertebrate fossils. The 

 geological part proper com- 

 prised but 32 pages, which 

 were by President Edward 

 Hitchcock, of Amherst -Col- 

 lege. The invertebrate fossils 

 were described by B. F. Shu- 

 mard. 



Dr. G. G. Shumard's report 

 consisted of a brief sum mar} 7 of 

 the geology of a portion of 

 northwestern Arkansas, which he considered as essential to a proper 

 understanding of that which was to follow, succeeded by memo- 

 randa of the various t3 7 pes of rocks, minerals, and formations passed 

 over each day. It was accompanied by a colored geological sec- 

 tion from Fort Belknap, Texas, to Washington County, Arkansas, 

 showing a granitic axis flanked on either side by Carboniferous lime- 

 stone, in its turn overlaid by Coal Measures, and with Cretaceous 

 deposits between Fort Wichita and Cross Timbers in Texas. 



