[1912.] 



4? 



CROSTHWAIT, H. L. Investigation of the Theory of Isostasy in India. Prof. 



Papers Surv. India, no. 13, pp. 1-14, with map. 1912. 

 CUMINGS, E. R. Development and Systematic Position of the Monticuliporoids. 



Bull. Geol. Soc. Am. xxiii. pp. 357-370. pis. xix-xxii. 1912. 

 CUMINGS, W. L., & B. L. Miller. Characteristics and Origin of the Brown 



Iron-Ores of Camaguey and Moa (Cnha). Trans. Am. Inst. 21. F. xlii. pp. 116- 



137, figs. _topogr. map]. 1912. 

 CUSHING, H. P. Nomenclature of the Lower Palaeozoic Rocks of New York. 



Am. Journ. Sci. ser. 4, xxxi. pp. 135-145. 1911. 

 > 2. The Age of the Cleveland Shale of Ohio. Am. Journ. Sci. ser. 4, xxxiii. 



pp. 581-584. 1912. 



CZEK, W. Die Radioaktivitat und ihre Bedeutung in den neueren Geologischen 

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DACQUE. E. Die Stratierraphie des Marinen Jura an den Randern des Pazifischen 



Ozeans. Geol. Pundsch. ii. pp. 464-498, figs. 1911. 

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 DAHMER, G. Die Entstehung der Kraterfelder des Mondes. X. J.f. Min. 1912, 



ii. pp. 42-44. pi. vi. 1912. 

 DAHMS, P. Ueber Erzlacerstatten in sauren Eruptuaesteinen Deutsch-Siidwest- 



Afrikas. Zeitsehr.f. prakt. Geol. xx. pp. 240-247.' 1912. 

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Soc. tosc. Sci. not., Jlemorie, xxvii. pp. 17-54. 1911. 

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 DAKYNS, J. R. Obit.— See Lamplugh, G. W., 4. 



DALE, T. X. The Ordovician Outlier at Hyde Manor in Sudbury (Vermont). 



Am. Journ. Sci. ser. 4, xxxiii. pp. 97-102, figs. 1912. 

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DALL, W. H. New Species of Fossil Shells from Panama and Costa Rica. Smiths. 



Miscell. Coll. lix. no. 2 (publ. no. 2u77). pp. 1-10. 1912. 

 DALLONI, M. Languedoc et Aquitaine. Feuille de Villereal. Bull. Serv. Carte 



geol. France, xxi. no. 132. pp. 94-95. 1912. 

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figs., 1 pi. 1911. And A.C. 

 2. Studi nelle Alpi Venete. Appunti sulla Geolo°:ia delle Provincie di 



Belluno e di Treviso. Boll. P. Com. geol. Ital. xliii. pp. 82-84. 1912. 



And A.C. 



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 D ALTON, L. V. On the Geolosry of Venezuela. Geol. JIag. dec. 5, ix. pp. 203-210. 



1912. And A.C. 



DALY, R. A. Reconnaissance of the Shuswap Lakes and Vicinity (South-Central 

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pp. 389-396, 1 pi. [portrait]. 1912. 

 DANCKERS, R. Ueber Kalkspatkristalle aus der Gegend von Limburg a. L. 



X J.f. Min. Beilage-Band xxxi. pp. 55-106. figs. 1911. 

 DAXELLL G. Sulla Composizione di alcuni Fosfati di Palestina e sulla Deter- 



minazione del Fluoro. Pendic. P. 1st. Lomb. xlv. pp. 617-631. 1912. 

 DARTOX, X. H. A Reconnaissance of Parts of Xorth- Western New Mexico and 



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Surv. no. 483, pp. 1-48. fig., pis. i-x [geol. map]. 1911. 



