204 The American Geologist. March, i899 
Osborn, H. F. 
Evolution of the Amblypoda. Part I. Taligrada and Pantodonta. 
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Osborn, H, F. 
Additional characters of the great herbivorous dinosaur Camar- 
asaurus. (Bull. Am. Mus. Nat. Hist., vol. 10, pp. 219-233, 1898.) 
Osborn, H. F. 
The origin of Mammals. (Am. Jour. Sci.. ser. 4. vol. 7, pp. 92- 
96. Feb. 1899.) 
Osborn, H. F. 
Frontal horn on Aceratherium incisivum. Relation of this type to 
Elasmotherium. (Science, new ser., vol. g, pp. 161-162, pi. i, Feb. 3, 
1899.) 
Penfield, S. L., and Foote, H. W. 
On the chemical composition of tourmaline. (Am. Jour. Sci.. ser. 
4. vol. 7, pp. 97-125. Feb. 1899.) 
Reid. H. F. 
Stratification of glaciers. [Abstract.] (Bull. Geol. Soc. Am.. \f)l. 
10. ]). 4 Jan. 28, 1899.) 
Ri ssell, Frank. 
Human remains from the Trenton gravels. (Am. ITr.t.. \o\. 33. 
pp. 143-156, Feb. 1899.) 
[Selwyn, A. R. C] 
Eminent living geologists: Alfred Richard Cecil Selwyn. (Geol. 
Mag., new ser.. dec. 4. vol. 6, pp. 49-55. i^'- -2. Feb. 1899.) 
Smith, J. P. 
Geographic relations of the Trias of California. (Jotir. Geol.. vol. 
6, pp. 776-786, Nov.- Dec. 1898.) 
Squier, G. H. 
.Studies, in the driftless region of Wisconsin. (Jour. Geol., vol. 7, 
pp. 79-82, Jan. -Feb. 1899.) 
Stanton, T. W. 
Supplement to the annotated catalogue of the published writings 
of Charles Abiathar White. (Proc. U. S. Nat. Museum, vol. 20. pp. 
627-642, 1898.) 
Tyrrell, J. B. 
The geology of the Klondike region. Eng.and Mining Jour.. \ol. 
(17. p. 116. Jan. 28. 1899.) 
Udden, J. A. 
The Sweetland Creek beds. (Jour. Geol.. vol. 7. pp. 65-78, Jan.- 
Feb. 1899.) 
Upham, Warren. 
Evidences of epeirogenic movements causing and terminating the 
Ice age. (Bull. Geol. Soc. .\m., vol. 10. p]). 5-10. Jan. 28, 1899.) 
