198 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
Gilbert, G. K. 
a. Report on the Geology of Portions of Nevada, Utah, California, and Ari- 
zona, examined in the years 1871 and 1872. Engineer Dep’t U.S. 
Army. Report upon Geog. and Geol. Expl. W. of 100th Merid. Vol. 
III., Washington, 1875. Part IL. pp. 17-187. 
b. The Colorado Plateaux Province as a Field for Geological Study. Amer. 
Journ. Sci., Vol. XII., 1876, 16-24, 85-108. 
c. Report on the Geology of the Henry Mountains. Dep’t of the Interior, 
U. S. Geog. and Geol. Survey Rocky Mountain Region, Washington, 
1877. 
d. Lake Bonneville. Monogr. I., U. S. Geol. Surv., Washington, 1890. 
e. Flagstaff to Grand Canyon. Geol. Guide-book for an Excursion to the 
Rocky Mountains. Compte-rendu 5th Internat. Congr. of Geol. New 
York, 1894, pp. 472, 473. 
Hayes, C. W. 
Physiography of the Chattanooga District in Tennessee. 19th Ann. Rep. 
U.S. Geol. Surv., Part IT., 1899, pp. 1-38, (58). 
Hayes, C. W., and Campbell, M. R. 
Gemorphology of the Southern Appalachians. Nat. Geogr. Mag., Vol. VI., 
1894, pp. 63-126, (105-107). 
Holmes, W. H. 
The Drawings by which the Colorado Canyon is so finely illustrated in 
Dutton’s Reports (4. ¢.), are from the pencil, pen, and brush of this 
artist-geologist. 
Howell, E. E. 
Report on the Geology of Portions of Utah, Nevada, Arizona, and New 
Mexico, examined in the years 1872 and 1873. Engineer Dep’t U. S. 
Army, Rep. upon Geog. and Geol. Expl. W. of 100th Merid., Vol. III, 
Washington, 1875. Part III., pp. 227-301. 
Ives, J. C. 
Report upon the Colorado River of the West. Senate, 36th Congress, 1st 
Session, in Washington, 1861, Part I. General Report, pp. 18-181. 
Jefferson, M. S. W. 
The Antecedent Colorado. Science, Vol. VI., 1897, pp. 298-295. 
Jukes, J. B. 
On the Mode of Formation of Some of the River Valleys in the South of 
Treland. Quart. Journ. Geol. Soc., Vol. XVIII., 1862, pp. 378-403. 
King, C. 
U. S. Geological Exploration of the Fortieth Parallel. Vol. I. Systematic 
Geology. Washington, 1878. 
