50 The Lower Ceetaceous Deposits op Maryland 



1881 

 N'ewbeert, J. S. American Cretaceous Flora. 

 Nature, vol. xxiv, 1881, pp. 191, 192. 



1883 

 Uhler, p. E. Geology of the Surface Features of the Baltimore Area. 

 Jolins Hopkins Univ. Circ, vol. ii, Feby., 1883, pp. 52-53. 

 (Abst.) Science, vol. i, 1883, pp. 75-76, 277. 



1884 



Eogers, William Barton. A Eeprint of Annual Eeports' and other 

 Papers, on the Geology of the Virginias, by the late William Barton 

 Eogers. 



New York, 1884. 



Ward^ Lester P. On Mesozoic Dicotyledons. 

 Am. Journ. Sci., 3d ser., vol. xxvii, 1884, pp. 292-303. 



1885 

 McGee, W J. Geological Formations underlying Washington and 

 Vicinity. 



Rept. Health Officer of tbe District of Columbia for the year ending June 

 30, 1885, by Dr. S. Townsend, pp. 19-21, 23-35. 



(Abst.) by author in Am. Journ. Sci., 3d ser., vol. xxxi, 1886, pp. 473-474. 



1886 

 IsTewberry, J. S. On the Cretaceous Flora of North America. 

 Proc. Am. Assn. Adv. Sci., vol. xxxv, 1886, p. 216. 



1887 

 Fontaine, W. M. The Flora of the Potomac Formation in Virginia. 

 Proc. Am. Assn. Adv. Sci., 36th meeting, New York, 1887, Salem, 1888, pp. 

 275-276. 



1888 

 McGee, W. J. Three formations of the Middle Atlantic Slope. 

 Am. Journ. Sci., 3d ser., vol. xxxv, 1888, pp. 120-143, 328-330, 367-388, 448- 

 466, pis. 2 and 6. 



Marcou^ Jules. American Geological Classification and JSTomencla- 

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75 pp., Cambridge, Mass., 1888. 



