56 Bulletin 7 ii2 



Columbia, Year Ending June 30, 1885, by Dr. S. Town- 

 send. 



{Abst.) Amer. Jour. Sci., 3d ser., vol. xxxi, pp. 473- 

 474, 1886. 



The Columbia Formation. 



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

 1887. 



Three Formations of the Middle Atlantic Slope. 



Amer. Jour. Sci., 3d ser., vol. xxxv, pp. 120-143, 1888. 

 The Appomattox Formation, Ibid., pp. 328-330. 

 The Columbia Formation, Ibid., pp. 367-388, section. 

 Resume, Ibid., pp. 448-466, se(5lions. 

 {Abst.) Amer. Geol., vol. ii, pp. 129-131, 1888. 



Geologic Antecedents of Man in the Potomac Valley. 



Amer. Anthropologist, vol. ii, pp. 227-234, 1889. (Not 

 seen ) . 



— : The Southern Extension of the Appomattox Formation. 



Amer. Jour. Sci., 3d ser., vol. xl, pp. 15-41, 1890. 

 {Abst.) Bull. Geol. Soc. Amer., vol. i, pp. 546-549, 1890. 

 " Amer. Nat., vol. xxv, p. 823, 1891. 



The Lafayette Formation. 



i2th Ann'l Rep't U. S. Geol. Surv., pp. 347-521, pis. 

 23-37, fi^s. 28-72, 1890-91. 



Virginia scattered throughout article. See especially pp. 486-48S. 

 {Abst.) Amer. Geol., vol. xiv, pp. 11 5- 116, 1894. 



Geology of Washington and Vicinity, with the Collab- 

 oration of Prof. G. H. Williams, Bailey Willis, and N. H. 

 Darton. 



Congres Geologique International. Compte Rendu, 

 ^me Session, Washington, 1891, pp. 219-257, sections. 



Virginia referred to in many places. 



Means, K. C, Flue Dust of the Furnaces at Low Moor, 

 Virginia. 



Trans. Amer. Inst. Min. Engrs., vol. xvii, pp. 1 29-1 31, 

 1888. 



Meek, F. B., Explorations in New Jersey and Virginia. 

 Ann'l Rep't Smithsonian Inst., 1863, p. 39. 

 Statement only. 



Descriptions of New Species of Fossil Plants from Alle- 



