28 BIBLIOGRAPHY AND INDEX OF N. A. GEOLOGY, [bull. 162. 
135 Case (E. C). The development and geological relations of the 
vertebrates III. Reptilia. 
Jour, of Geol., vol. vi, pp. 517-523, 622-646, 711-735, 1898. 
Describes the general characters of the various forms. 
136 The development and geological relations of the vertebrates. 
IV. Aves. V. Mammalia. 
Jour, of Geol., vol. vi, pp. 816-839, 1898. 
137 Toxochelys. 
Kan. Univ. Geol. Surv., vol. iv, pp. 370-385, pis. lxxix-lxxxiv, 1898. 
Describes several species, including a new one. 
138 The significance of certain changes in the temporal region of 
the primitive Eeptilia. 
Am. Nat., vol. xxxii, pp. 69-74, 2 figs., 1898. 
139 Catlett (Charles). See Birkinbine (John), No. 79. 
140 Chalmers (Robert). The preglacial decay of rocks in eastern 
Canada. 
Brit. Assoc. Adv. Sci., Rept. 1897, pp. 655-656, 1898. 
Describes beds of decayed rock beneath the glacial covering. 
141 The preglacial decay of rocks in eastern Canada. 
Am. Jour. Sci., 4th ser., vol. v, pp. 273-282, 1898. 
Describes the physiographic features of the region, the distribution 
of the decayed rock materials, and the causes of the decomposition of 
the rocks. 
142 The gold-bearing deposits of the eastern townships of Quebec. 
Federated Can. Mg. Inst., Jour., vol. ii, pp. 13-27, 1897. 
Describes the occurrence and origin of the gold deposits of the 
region. 
.143 Chamberlin (T. C). [Review of "Revised text-book of geology," 
by James D. Dana. Edited by William North Rice.] 
Jour, of Geol., vol. vi, pp. 435-436, 1898. 
144 [Review of " Northward over the great ice. A narrative of 
life and work along the shores and upon the interior ice cap 
of northern Greenland in the years 1886 and 1891-1897," by 
Robert E. Peary.] 
Jour, of Geol., vol. vi, pp. 438-441, 1898. 
145 The ulterior basis of time divisions, and the classification of 
geologic history. 
Jour, of Geol., vol. vi, pp. 449-462, 3 figs., 1898. 
Discusses the evidences that the history of the earth can be classified 
into natural divisions by the recognition of its inherent periods. 
146 A systematic source of evolution of provincial faunas. 
Jour, of Geol., vol. vi, pp. 597-608, 1898. 
Discusses the characteristics of the movements of the earth crust 
and the relation and influence of the attitude of sea to land in the evo- 
lution of faunas. 
