MUSEUM OF COMPARATIVE ZOOLOGY. 253 



Emmons, E. 



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c. American Geology. All)any, 1854, (106-112). 



d. Geological Report of the Midland Counties of North Carolina. New 

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e. The Chemical Constitution of certain Members of the Chatham Series in 

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Fontaine, W. M. 



Notes on the Mesozoic Strata of Virginia. A. J. S. [3], XVII., 1879, 25-39, 

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Frazer, P., Jr. 



a. Second Geological Survey of Pennsylvania. Report of Progress in the 

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6. The same. Report of Progress in the Counties of York, Adams, Cum- 

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c. The same. The Geology of Lancaster County. Hamsburg, 1880, with 



a volume of maps. 



d. The Position of the American New Red Sandstone. Amer. Inst. Mining 

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e. Regarding some Mesozoic Ores. Amer. Phil. Soc. Proc, XVI., 1877, 



651-655. 

 /. The Mesozoic Sandstones of the Atlantic Slope. Amer. Nat., 1879, 

 284-292. 



Gesner, A. 



A Geological Map of Nova Scotia, with an accompanying Memoir [1843]. 

 Geol. Soc. Proc, IV., 1846, (190). 



Gibson, J. B. 



Observations on the Trap Rocks of the Connewago Hills, .... Pa. [1820]. 

 Amer. Phil. Soc, II., 1825, 156-166. 



Harrington, B. J. See Dawson and Harrington. 



Hartt, C. F. See Bailey, Matthew, and Hartt, 



Hawes, G. W. 



a. The Trap Rocks of the Connecticut Valley. A. J. S. [3], IX., 1875, 



185-192. 



b. On the Mineralogical Composition of the Normal Mesozoic Diabase upon 

 the Atlantic Border. Washington Nat. Mus. Proc, 1881, 129-134, 



Heinrich, O. J. 



The Mesozoic Formation in Virginia. Amer. Inst Mining Engr. Trans., 

 VI., 1879, 227-274, map and sections. 



