MARYLAND GEOLOGICAL SURVEY 57 



1887. 



McGee, W J The Columbia Formation. 



Proc. Amer. Assoc. Adv. Sci., vol. xxxvi, 1887, pp. 221-222. 



1888. 



Day, D. T. (Editor). Useful Minerals of the United States. 

 Mineral Resources U. S., 1887, Washing-ton, 1888, pp. 739-742. 



McG-ee, W J The Geology of the Head of Chesapeake Bay. . 



7th Ann. Eept. U. S. Geol. Surv., 1885-86, Washington, 1888, pp. 537-646, 

 plates 56-71. 



(Abst.) Amer. Geol., vol. i, 1887, pp. 113-115. 



Three Formations of the Middle Atlantic Slope. 



Amer. Jour. Sci., 3rd ser., vol. xxxv, 1888, pp. 120-143, 328-331, 367-388, 448- 

 466, plate ii. 



(Abst.) Nature, vol. xxxviii, 1888, pp. 91, 190. 

 Amer. Geol., vol. ii, 1888, pp. 129-131. 



Uhlee, P. E. The Albirapean Formation and its nearest relatives 

 in Maryland. 



Proc. Amer. Phil. Soc, vol. xxv, 1888, pp. 42-53. 



Observations on the Eocene Tertiary and its Cretaceous 



Associates in the State of Maryland. 

 . Trans. Md. Acad. Sci., vol. i, 1888, pp. 11-32. 



Williams, George H. Progress of Work on the Archean Geology 

 of Maryland. 



Johns Hopkins Univ. Cir. No. 65, vol. vii, 1888, pp. 61-63. 



1889. 



Fontaine, W. M. Potomac or Younger Mesozoic Flora. 



Mono. IT. S. Geol. Surv., No. 15, 1889, 377 pp., 180 plates. 



House Misc. Doc, 50th Cong., 2nd sess., vol. xvii, No. 147. 



(Eev.) Amer. Jour. Sci., 3rd ser., vol. xxxix, 1890, p. 520 (L. F. W.). 



Uhler, P. E. Additions to observations on the Cretaceous and 

 Eocene formations of Maryland. 



Trans. Md. Acad. Sci., vol. i, 1889, pp. 45-72. 



Ward, Lester F. The Geographical Distribution of Fossil Plants. 



8th Ann. Eept. U. S. Geol. Surv., 1886-87, Washington, 1889, part ii, pp. 

 663-960, maps. 



