NO. 12 CHARLES DOOLITTLE WALCOTT 35 



1916. Geological explorations in the Rocky Mountains, in Explorations and 



field-work of the Smithsonian Institution in 1915. Smithsonian Misc. 

 Coll., Vol. 66, No. 3, pp. 1-27, figs. 1-40. 



1917. Report of the Secretary of the Smithsonian Institution, Charles D. 



Walcott, for the year ending June 30, 1916. Ann. Rep. Smithsonian 



Inst. 1916, 1917, pp. 1-33, with appendices. 

 1917. Geological explorations in the Canadian Rockies, in Explorations and 



field-work of the Smithsonian Institution in 1916. Smithsonian Misc. 



Coll., Vol. 66, No. 7, pp. 1-19, figs. 1-24. 

 1917. Nomenclature of some Cambrian Cordilleran formations. Smithsonian 



Misc. Coll., Vol. 67, No. I. Cambrian Geology and Paleont., IV, No. i, 



May 9, 1917, pp. 1-8. 

 1917. The Albertella fauna in British Columbia and Montana. Smithsonian 



Misc. Coll., Vol. 67, No. 2. Cambrian Geology and Paleont., IV, No. 2, 



May 9, 1917, pp. 9-59> pls. 1-7. 



1917. Fauna of the Mount Whyte formation. Smithsonian Misc. Coll., Vol. 67, 



No. 3. Cambrian Geology and Paleont, IV, No. 3, Sept. 26, 1917, 

 pp. 61-114, pis. 8-13. 



1918. The Life Story of an American Airman in France. Introduction to 



extracts from letters of Stuart Walcott, Nat. Geogr. Mag., Jan., 1918. 

 Also, Above the French Lines, Introduction, Princeton Univ. Press, 

 1918. 

 1918. Geological explorations in the Canadian Rockies, in Explorations and 

 field-work of the Smithsonian Institution in 1917. Smithsonian Misc. 

 Coll., Vol. 68, No. 12, 1918, pp. 4-20, figs. 1-19. 



1918. Appendages of Trilobites. Smithsonian Misc. Coll., Vol. 67, No. 4. 



Cambrian Geology and Paleont., IV, No. 4, Dec, 1918, pp. 1 15-216, 

 pis. 14-42, text figs. 1-3. 



1919. Report of the Secretary of the Smithsonian Institution, Charles D. 



Walcott, for the year ending June 30, 1917. Ann. Rep. Smithsonian 

 Inst. 1917, 1919, pp. 1-29, with appendices. 

 1919. Middle Cambrian Algae. Smithsonian Misc. Coll., Vol. 67, No. 5. 

 Cambrian Geology and Paleont., IV, No. 5, Dec. 26, 1919, PP- 217-260, 

 pis. 43-59- 



1919. Geological explorations in the Canadian Rockies, in Explorations and 



field-work of the Smithsonian Institution in 1918. Smithsonian Misc. 

 Coll., Vol. 70, No. 2, 1919, pp. 3-20, figs. 1-21. 



1920. Report of the Secretary of the Smithsonian Institution, Charles D. 



Walcott, for the year ending June 30, 1918. Ann. Rep. Smithsonian 

 Inst. 1918, 1920, pp. 1-23, with appendices. 

 1920. Middle Cambrian Spongiae. Smithsonian Misc. Coll., Vol. 67, No. 6. 

 Cambrian Geology and Paleont., IV, No. 6, 1920, pp. 261-364, pis. 60-90, 

 text figs. 4-10. 



1920. Geological explorations in the Canadian Rockies: field season of 1919, in 



Explorations and field-work of the Smithsonian Institution in 1919. 

 Smithsonian Misc. Coll., Vol. 72, No. i, 1920, pp. 1-16, figs. 1-16. 



1921. Report of the Secretary of the Smithsonian Institution, Qiarles D. 



Walcott, for the year ending June 30, 1919. Ann. Rep. Smithsonian 

 Inst. 1919, 1921, pp. 1-23, with appendices. 



