Mar. 1899. THE ORES OF CoLoMBIA—NICHOLS. 175 
Colombia. Robert B. White. Rep’t of the Br. Ass'n Adv. Sci., 1882, 
Pp. 552: 
*Lithological Studies. A Description and Classification of the 
Rocks of the Cordilleras. M.E. Wadsworth. Mem, Mus. Comp, Zoél., 
Vol. XI, 1884, pt... This work when consulted proved not to bear 
upon the subject in hand, but to be a treatise on meteorites. This 
title is included here to prevent others from being misled by it. 
*The Cauca Mining District. John Hays Hammond. 77, A. J. 
M. £., Vol. XIII, 1885, p. 135. 
Geologie de lancienne Colombie bolivarienne, Venézuela, 
Nouvelle-Grenade et Ecuador. H. Karsten. Berdin, 1886. With 
bibliography. 
*A Study of the Gold and Silver Mines of Colombia. Vicente 
Restrepo. Colombian Consulate, New York, 1886. 
Die Sierra Nevada de Santa Marta und die Sierra de Perija. W. 
Sievers. Zettschrift der Gesellschaft fiir Erdkunde zu Berlin. Bad. 
XX/I, 1888. With bibliography. 
*Notes on the Republic of Colombia, S. A. John C, Randolph. 
Ir, A. I. M. E., Vol. XVIII, 1889-90, p. 205. 
*Etude sur les Mines d’Or et d’Argent de Colombie. Vicente 
Restrepo, with notes by Henry Jahlhay. Bruxelles, r8gz. This is 
abridged from the larger Spanish edition. It is in places more com- 
plete than the edition in English. 
*Colombia. Bull. No. 33 of the Bureau of American Republics, 
Washington, D. C., 1892. See also the monthly bulletins of this 
bureau. 
Die Kordillere von Bogota. A. Hettner. Petermann’s Mitt., 1892. 
With bibliography. 
Reisen in Siid-Amerika. Geologische Studien in der Republik 
Colombia. Reiss and Stiibel, Ber/in, 1892. With bibliography. 
*Colombia. Mineral Industry for 1892, Vol. 1, ~. 557, N. Y. 
*Gold Washing in Colombia: Charles Bullman. Lngineering 
and Mining Journal, April 4, 1892. Other articles on Colombia appear 
at intervals in this magazine. 
*The Mineral Industry for 1893. Vol. JJ, p. 330. N.Y. 
The Mineral Wealth of Colombia. Zhe Mining Journal, August 
18, 1894, p. gor. 
*The Earth and Its Inhabitants: South America, Vol. I. The 
Andes Regions. Elisée Reclus. Mew York, 1804. 
*The Mineral Resources of Colombia: Robert B. White. Zhe 
Mineral Industry for 1895. Vol. LV, p. 634. 
