102 BIBLIOGRAPHY AND INDEX OF N. A. GEOLOGY, [bull. 162. 
904 Williston (S. W.). Notice of some vertebrate remains from the 
Kansas Permian. 
Kan. Acad. Sci., Trans., vol. xv, pp. 120-122, 1898. 
Describes fragments of Cricotus and Clepsydrops Cope. Considers 
the red beds Triassic. 
905 The sacrum of Morosaurus. 
Kan. Univ. Quart., vol. vii, pp. 173-175, 2 figs., 1898. 
Describes material from Converse County, Wyoming. 
906 [On the genus Platecarpus]. 
Kan. Univ. Quart., vol. vii. Editorial notes, p. 235, 1898. 
Describes recently discovered material. 
907 [Contribution to "A symposium of the classification and 
nomenclature of geologic time divisions."] 
Jour, of Geol., vol. vi, pp. 342-345, 1898. 
908 Miocene Edentates. 
Science, new ser., vol. viii, p. 132 (£ p.), 1898. 
Refers to an error of Prof. Cope. 
909 Willmot (A. B.). Notes on the Michipicoton gold field [Ontario]. 
Federated Can. Mg. Inst., Jour., vol. iii, pp. 100-102, 1898. 
Contains brief notes on the gold ores north of Lake Superior. 
910 Wilson (Herbert M.). Topography of Mexico. 
Am. Geogr. Soc, Bull., vol. xxix, pp. 249-260, with map, 1897. 
Review by W. M. Davis, Science, new ser., vol. vii, p. 125 (£ p.), 1898. 
911 Wilson (J. W.). Geology of Effingham Eidge. Preliminary 
report [Kansas]. 
Kan. Acad. Sci., Trans., vol. xv, pp. 113-114, 1898. 
Describes the occurrence of Carboniferous rocks and Glacial drift. 
912 Wilson (W. J.). Notes on the Pleistocene geology of a few places 
in the Ottawa Valley [Canada]. 
Ottawa Nat., vol. xi, pp. 209-220, 1898. 
Describes the glacial geology of the region. 
913 Winchell (Horace V.). The Lake Superior iron ore region, U. S. A. 
Excerpt from the Federation Institution of Mg. Engrs., Trans., 70 
pp., 7 figs., London, 1897; Review, Zeit. fur prak. Geol., 1898, heft 6, pp. 
207-212, 1898. 
Gives a historical sketch of the region, a discussion of the geologic 
features and of the genesis of the ore deposits, and the classification of 
the pre-Silurian rocks. 
914 On the occurrence of Cuban ite at Butte, Montana. 
Am. Geol., vol. xxii, pp. 245 (§- p.), 1898. 
Describes its character and occurrence. 
915 Winchell (Newton H.). [Geology and its relations to topography.] 
Am. Soc. Civil Engrs., Trans., vol. xxxix, pp. 83-84, 1898. 
In discussion of paper by John C. Branner on the same subject. 
