36 BIBLIOGRAPHY AND INDEX OF N. A. GEOLOGY, [bull. 162. 
220 Davis (William M.). [Keview of "Late formations and great 
changes of level in Jamaica," by J. W. Spencer.] 
Science, new ser., vol. vii, p. 851 (i p), 1898. 
221 [Geology and its relations to topography.] 
Am. Soc. Civil Engrs., Trans., vol. xxxix, pp. 86-88, 1898. 
In discussion of paper by John C. Branner on the same subject. 
222 Dawson (George M.). Summary report of the Geological Survey 
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Canada Geol. Surv., new ser., vol. ix, Rept. A, 144 pp., 1898. 
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223 Dawson (J. William). On the genus Lepidophloios as illustrated 
by specimens from the coal formation of Nova Scotia and 
New Brunswick. 
Can. Roy. Soc, Proc. and Trans., 2d ser., vol. iii, sect, iv, pp. 57-78, pis. 
i-xiv, figs. A-D, 1898. 
Describes L. acadianus and L. cliftonensis and discusses the relations 
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224 Note on Lepidophloios cliftonensis. 
Geol. Soc. Am., Bull., vol. ix, p. 416 (101), 1898; Abstract, Science, new 
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225 Dawson (William L.). Glacial phenomena in Okanogan County. 
Washington. 
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226 Day (David T.). Platinum. 
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227 Day (William 0.). Stone. 
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George Madeira, and on West Virginia marbles by George C. Under- 
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228 Dean (Bashford). Note on the ventral armoring of Dinichthys. 
N. Y. Acad. Sci., Trans., vol. xvi, pp. 57-61, 1898. 
229 On a new species of Edestus, E. lecontei, from Nevada. 
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Describes a new species and discusses its evidence of the primitive 
mode of spine formation within the phylum of fishes. 
230 See Newberry (J. S.), No. 573. 
