49 



[!? 9 7.] 



HAUTHAL, R. Contribucion al Estudio de la Geologia de la Provincia de Buenos 

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HAWKINS, C. E. Occurrence of Iron Ores and Iron Manufacture in the Weald. 

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HAYDEN, H. H. Report on tbe Steatite Mines, Minbu District, Burma. Bee. 



Geol. Surv. India, xxix. pp. 71-76. 1896. 

 HAYES, C. W. Solution of Silica under Atmospheric Conditions. Bull. Geol. 



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 HERDMAN, W. A. The Marine Zoology, Botany, and Geology of the Irish Sea. 



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 *HERGESELL, H. Die Abkiihlung der Erde und die gebirgsbildenden Krafte. 



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 *HERR1CK, C. L. The Geology of a Typical Mining Camp in New Mexico [Mag- 



dalena Mts.]. Am. Geol. xix. pp. 256-262, pis. xiii. & xiv. [Map.] 1897. 

 HERRMANN, 0. Perclorato en el Salitre chileno. Bol. Soc. Nac. Min. Santiago, 



ser. 3, ix. pp. 415-422. 1897. 

 *HERSHEY, 0. H. Ancient River Deposits of the Spring River Valley in Kansas. 



Am. Geol. xvii. pp. 37-40. 1896. 

 * 2. Eskers indicating Stages of Glacial Recession in the Kansan Epoch in 



Northern Illinois. [Map.] Ibid. xix. pp. 197-207, 237-253, pi. xi. 1897. 

 * 3. The Physiographic Development of the Upper Mississippi Valley. Ibid. 



xx. pp. 246-268, fig. 1897. 



4. The Florencia Formation. Am. Journ. Sci. ser. 4, iv. pp. 90-98. 1897. 



5. Mode of Formation of Till as illustrated by the Kansas Drift of Northern 



Illinois. Journ. Geol. Chicago, v. pp. 50-62, fig. 1897. 

 *HEUSLER, — . Ueber die neuesten Bohrungen auf Kohlensaure-Quellen bei 



Honningen. Verli. naturh. Ver. preuss. Rheinl. Hi. pp. 18-25. 1895. 

 *HEUSNER, — . Ueber die Salzquellen des Nahethales. Verh. naturh. Ver. 



preuss. Rheinl. Iii. pp. 8-15. 1895. 

 *HIBSCH, J. E. Erlauterungen zur geologischen Karte des bohmischen Mittel- 



gebirges. Blatt III. Bensen. Min. petr. Mitth. n. s. xvii. pp. 1-96, figs., pi. i. 



E 



