1892.] Geology and Paleontology. 47 



for 1889 ; Report of Field Observations made in 1888, in 1889, N. H. 

 Winchell ; American Opinion on the Older Rocks, A. Winchell ; Addi- 

 tions to the Library of the Survey since 1884 ; List of Publications of 

 the Survey. 



This report gives an idea of the progress that is being made in the 

 intricate geology in the northeastern part of the State, and of the 

 economic resources that are being developed there. Mr. N. H. Win- 

 chell's field observations confirm the views set forth by Irving, Bon- 

 ney and Lawson, and the conclusions published by the Minnesota 

 Survey, to the effect that the Huronian System, as now defined and 

 understood by the Canadian geological reports, really embraces two or 

 three formations ; that one of them is the true Huronian of Murray ; 

 another is the Kewatin of Dr. A. C. Lawson, containing the iron-ores 

 at Tower, Minn.; and another is the series of crystalline schists which 

 Dr. Winchell calls the Vermilion series. They are distinctly sepa- 

 rated by lithology and unconformities that have been noted from Ver- 

 mont to Minnesota, and can no longer be included under a single term. 



Report of the Geological Survey of Texas, I889. 1 — The 

 first annual report of the Geological Survey of Texas is presented in 

 8vo. form of 410 pages, with maps, sections and plates. The general 

 reports of the State geologist and the several field geologists is followed 

 by important papers on the economic geology of the State. Mr. Pen- 

 rose reports on the iron ores of Eastern Texas, which necessarily 

 includes an account of the general geology of the Gulf Tertiary. Mr. 

 Hill discusses the economic uses of the Cretaceous rocks. Messrs. 

 Cummins and Tarr are studying the problems of the coal, the gypsum 

 and the salt, which are found in the Carboniferous period, and con- 

 tribute papers on these subjects. Mr. Von Streeruwitz gives a prelimi- 

 nary statement of the geology of Trans-Pecos Texas, with reference to 

 mining interests, and Mr. Comstock a preliminary report on the cen- 

 tral mineral region of Texas. Both of these papers contain valuable 

 information concerning the older rocks of the State. 



Infusorial Earths of Pacific Coast.— In a recent paper (Am. 

 Journ. ScL, Nov., 1891), Mr. A. M. Edwards has described seven new 

 fluviatile, fossiliferous deposits from Oregon, California and Washing- 

 ton, four of which are from the western side of the mountains, one 

 from the gap, and one from the east ; proving that the fresh-water 



1 First Annual Report of the Geological Survey of Texas, 1889. E. T. Dumble, 



