Authors' Catalogue. 323 
Hillebrand, W. F, 
Mineralogical notes; melonite coloradoite, petzite, hessite. (Am. 
Jour. Sci., vol. 8, Oct. 1899, pp. 295-299.) 
Hobbs, W. H. 
Emigrant diamonds in America. (Popular Science Monthly, vol. 56 
pp. 73-83, Nov. 1899.) 
Lambe, Lawrence, M. 
Notes on a Stromatoporoid form from the Hudson River formation 
of Ontario. (Ottawa Naturalist, vol. 13, Oct. 1899, pp. 170-171.) 
Palache, C. 
Epidote and garnet from Idaho. (Am. Jour. Sci., vol. 8, Oct. 1899, 
pp. 299-303-) 
Phillips, A. H. 
Mineralogical structure and chemical composition of the trap of 
Rocky Hill, N. J. (Am. Jour. Sci., vol. 8, Oct. 1899, pp. 267-285.) 
Scott, W. B. 
The selenodont artiodactyls of the Uinta Eocene. (Trans. Wag. Free 
Inst., vol. 6, pp. 121, 4 pis., May, 1899.) 
Stanton, T. W. 
Mesozoic Fossils of the Yellowstone National Park. (Mon. 32, U. S. 
Geol. Sur., pp. 600-640, pis. 72-75, 1899.) 
Steiger, G. (F. W. Clarke and). 
Experiments relative to the constitution of pectolite, pyrophyllite, 
calamine and analcite, (Am. Jour. Sci., vol. 8, Oct., 1899, pp. 245-257.) 
Washington, H, S. 
Analyses of Italian volcanic rocks. (Am. Jour. Sci., vol. 8, Oct. 1899, 
pp. 286-295.) 
Weeks, F. B. 
Bibliography and index of North American geology, paleontology, 
petrology and mineralogy for the year 1898. Bull. No. 162, U. S. Geol. 
Survey, pp. 163, Washington, 1899. 
Winchell, N. H. 
A new iron-bearing horizon in the Keewatin in Minnesota. (Proc. 
Lake Sup. Min. Inst., vol. 5, pp. 46-49, 1899.) 
Withrow, James R. (S. Herbert Hamilton and) 
The progress of mineralogy in 1898. Bull. No. i, Am. Inst. Min. 
Eng. pp. 33, New York, 1899. 
