Iviii GEOLOGICAL AND PALEONTOLOGICAL RELATIONS 



1890. 



Clark, Wm. B. Third Annnal Geological Expedition into Southern 

 Maryland and Virginia. 



Johns Hopkins Univ. Cir. No. 81, voL ix, 1890, pp. 69-71. 



Cope, E. D. The Cetacea. 



Amer. Nat., vol. xxiv, pp. 599-616, pis. xx-xxili. 



Dall, W. H. Contributions to the Tertiary Fauna of Florida, with 

 especial reference to the Miocene Silex-beds of Tampa and the Pliocene 

 beds of the Caloosahatchie River. Part I. Pulmonate, Opisthobranchi- 

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Trans. Wagner Free Inst. Sci., Phila., vol. ill, part i, 1890, pp. 1-200, pi. i-xii. 



Day, D. T. Abrasive Materials. 



Mineral Eesources U. S., 1888, Washington, 1890. 



Macfarlane, J. E. An American Geological Railway Guide. 2nd 

 edit. 8vo, 426 pp. Appleton, 1890. 



RoTTHAY, J. Revision of the Genus Actinocyclus. 



Jour. Luckett-Micro Club, ser. ii, vol. iv, No. 27, 1890, pp. 137-212. 



Uhler, p. R. Notes on ]\Iaryland. 



Macfarlane's An American Geol. R. R. Guide, 2nd Edit., Appleton, 1890. 



Notes and Illustrations to " Observations on the Cretaceous 



and Eocene Formations of Maryland." 



Trans. Amer. Acad. Sci., vol, i, 1890, pp. 97-104. 



Woolman, Lewis. Geology of Artesian Wells at Atlantic City, N. J. 



Proc. Acad. Nat. Sci., Phila., 1890, pp. 132-147. 



1891. 



Clark, W. B. Report on the Scientific Expedition into Southern 

 Maryland. [Geology; W. B. Clark. Agriculture; Milton Whitney. 

 Archaeology; W. H. Holmes.] 



Johns Hopkins Univ. Cir. No. 89, vol. x, 1891, pp. 105-109. 



Dall, Wm. H. Elevation of America in Tertiary Periods. 

 Geol. Mag. n. s. dec. iii, vol. viii, 1891, pp. 287-288. 



Elevation of America in the Ceuozoic Periods. 



Amer. Nat., vol. xxv, 1891, pp. 735-736. 



