Maryland Geological Survi;y 65 



1907 



Clark, Wm. B., and Mathews, Edward B. The physical features of 

 Maryland embracing an account of the physiography, geology, mineral 

 resources, agricultural soils, climate, hydrography, terrestrial magnetism, 

 and forestry. 



Md. Geol. Survey, voL vi, 1906 [1907], pt. i, pp. 27-259, pis. i-xxiii, and map 

 of Maryland showing the geological formations and agricultural soils, 1907. 

 Parts i and ii appeared as a Special Publication in May, 1906. 



Ohern, D. W. Contributions to the paleontology of the Paleodevonian 

 of Maryland. 



Johns Hopkins Univ. Cir., n. s., 1907, No. 7, pp. 91-93. 

 SwAETZ, Charles K. The Ithaca fauna of Maryland. 

 Johns Hopkins Univ. Cir., n. s., 1907, No. 7, pp. 50-57. 



1908 



Martin, George C. Accident-Grantsville Folio, Maryland, Pennsyl- 

 vania, West Virginia. 



U. S. Geol. Surv., Geol. Atlas U. S., Folio 160, 1908, pp. 1-14, 8 maps and 1 page 

 of columnar sections. 



SwARTZ, Charles K. The succession of faunas in the Portage and 

 Chemung formations of Maryland. 

 Jour. Geol., vol. xvi, 1908, pp. 328-346. 



1909 



Grabau, Amadeus W., and Shimer, Hervey W. North American 

 Index Fossils. 



New York, vol. i, 1909, pp. i-viii + 1-853, text figs. 1210. No. 1, Protozoa, Pori- 

 fera, Hydrozoa and Anthozoa, pp. 1-106 appeared in 1906, and No. II, Bryozoa 

 and Brachiopoda, pp. 107-360, in 1907; vol. ii, 1910, pp. i-xiv + 1-909, text figs. 

 1211-1937. 



1910 

 ScHUCHERT, Charles. Paleogeography of jSTorth America. 

 Bull. Geol. Soc. Am., vol. xx, 1910, pp. 427-606, pis. xlvi-ci. 

 Stose, George W. Mercersburg-Chambersburg Folio. 

 U. S. Geol. Surv., GeoL Atlas U. S., Folio 170, 1910, Field Edition, pp. 1-144, 6 

 maps and 10 pp. illustrations. 



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