14 RESEARCH 
WatcotT, C.D. 1902. Proceedings United States Na- | 
tional Museum, vol. 25, 1902 (Nov. 3), pp. 
577-612: Cambrian Brachiopoda: Acrotreta; | 
Linnarssonella; Obolus; with descriptions | 
of new species. 
1905a. Proceedings United States National 
Museum, vol. 28, 1905 (Feb. 17), pp. 227- 
337: Cambrian Brachiopoda with descrip- 
tions of new genera and species. 
1905b. Proceedings United States National 
Museum, vol. 29, 1905 (Sept. 6), pp. 1-106: 
Cambrian faunas of China. 
1906. Proceedings United States National 
Museum, vol. 30, 1906 (May), pp.563-595: 
Cambrian faunas of China, paper No. 2. 
1908a. Smithsonian Miscellaneous Collec- 
tions, vol. 53, Cambrian Geology and Pale- 
ontology, No. 1, 1908 (Apr. 18), pp. I-12: 
Nomenclature of some Cambrian Cordil- 
leran formations. 
1908b. Smithsonian Miscellaneous Collec- 
tions, vol. 53, Cambrian Geology and Pal- 
eontology, No. 2, 1908 (Apr. 25), pp. 13-52: 
Cambrian trilobites. 
1908c.. The Canadian Alpine Journal, vol. 1, 
No. 2, 1908, pp. 232-248, 5 ills., 4 pls.: 
Mount Stephen rocks and fossils. 
1908d. Smithsonian Miscellaneous Collec- 
tions, vol. 53, Cambrian Geology and 
Paleontology, No. 4, 1908 (Oct. 13), pp. 
139-165, pls. 11 and 12, text fig. 1: Classi- 
fication and terminology of the Cambrian 
Brachiopoda. 
1908e. Smithsonian Miscellaneous Collec- 
tions, vol. 53, Cambrian Geology and Pal- 
eontology, No. 5, 1908 (Dec.), pp. 167-230, 
pls. 13-22: Cambrian sections of the Cordil- 
leran area. 
1910a. 
tions, vol. 53, Cambrian Geology and Pal- 
eontology, No. 6, 1910 (Aug. 12), pp. 231- 
422, pls. 23-44: Olenellus and other genera 
of the Mesonacide. 









5 ’ ; | ZrrtEL, K. A. von. 
Smithsonian Miscellaneous Collec- | 

IN CHINA. 
WaccoTT, C.D. 1910b. Smithsonian Miscellaneous 
Collections, vol. 57, Cambrian Geology and 
Paleontology, No. 1, 1910 (Aug. 18), pp. 
1-16: Abrupt appearance of the Cambrian 
fauna on the North American continent. 
1911. Smithsonian Miscellaneous Collections, 
vol. 57, Cambrian Geology and Paleon- 
tology, No. 4, 1911 (June 17), pp. 69-108, 
pls. 13-17, text figs. 7 and 7a: Cambrian 
Faunas of China. 


1912a. Smithsonian Miscellaneous Collec- 
tions, vol. 57, Cambrian Geology and Pale- 
ontology, No. 9, t912 (Sept. 14), pp. 251- 
304, pls. 37-49: New York Potsdam-Hoyt 
Fauna. 

1912b. Monographs United States Geolog- 
ical Survey, vol. 51, 1912, pp. 1-872, pls. 
1-104, text figs. 1-76: Cambrian Brachio- 
poda. 
WALLERIUS, I. D. 1895. Unders6kningar 6fver 
Zonen med Agnostus levigatus i Vester- 
gotland, etc.: 1895. 8°. Lund. 
WILLIS, BAILEY. 1907. Research in China, Pub. 
No. 54, Carnegie Institution of Washington, 
vol. 2, 1907 (July), pp. I-v, 1-133, pls. 1-8: 
Systematic geology. 

BLACKWELDER, EvtoT, and SARGENT, R. H., 
1907. Research in China, Pub. No. 54, 
Carnegie Institution of Washington, vol. 1, 
1907 (Apr.), pt. 1, pp. 1-353, figs. 1-65: 
Descriptive topography and geology. 
WoopwarpD, Henry. 1905. Geological Magazine 
of London, new ser., Dec. v, vol. 2, 1905, 
pp. 211-215, 251-255, pl. 13: On a collec- 
tion of trilobites from the Upper Cambrian 
of Shantung, North China. 
1885. Handbuch der Palaon- 
tologie, Bd. II, Palaozoologie, Abth. 2, 
Mollusca und Arthropoda, 1885. 8°, pp. 
1-893, 1109 Abbildungen. Miinchen und 
Leipzig. 
