240 University of California Publications in Zoology \(Vou.9 
1902b. The structure and significance of the heart of the Enteropneusta. 
Zool. Anz., 26, 1-5, 3 figs. in text. 
1902c. Marine biology and the marine laboratory at San Pedro. Univ. 
Calif. Chronicle, 5, 222-230. 
1902d. The movements of the Enteropneusta and the mechanism by 
which they are accomplished. Biol. Bull., 3, 255-261. 
1903. Preliminary report on the marine biological survey work carried 
on by the zoological department of the University of California 
at San Diego. Science, 18, 360-366. 
1903a. Miss Monks on the regeneration of Phataria. Amer. Nat., 37, 
818. 
1903b. The structure and affinities of Herdmania claviformis, the type 
of a new genus and family of ascidians from the coast of 
California. Mark Anniversary Volume, art. 12, 237-261, 2 pls. 
1904. The biological survey of the waters of the Pacifie Coast. 
Science, 20, 214-215. 
1905a. A general statement of the ideas and the present aims and 
status of the Marine Biological Association of San Diego. 
Univ. Calif. Publ. Zool., 2, i-xvii, 2 maps. 
1905b. Organization in scientific research. Pop. Sci. Mon., 69, 49-53. 
1905e. The pelagic Tunicata of the San Diego region, excepting the 
larvacea. Univ. Calif. Publ. Zool., 2, 51-112, 2 pls., 31 figs. 
in text. 
1907a. Marine Biological Association of San Diego. Science, 26, 386— 
388. (Extract from the annual report of the scientific director 
for the year 1906-1907.) 
1907b. The ascidians collected by the United States Fisheries Bureau 
steamer ‘‘Albatross’’ on the coast of California during the 
summer of 1904, Univ. Calif. Publ. Zool., 4, 1-52, 3 pls. 
1908. The scientifie work of the San Diego Marine Biological Station 
during the year 1908. Science, 28, 329-333. 
1909a. Quantity and adaptation of the deep-sea ascidian fauna. Proe. 
Seventh Internat. Zool. Congr., Boston, August., 1907. 
1909b. Halocynthia johnsoni n.sp. A comprehensive inquiry as to the 
extent of law and order that prevails in a single animal 
species. Univ. Calif. Publ. Zool., 6, 65-114, 8 pls. 
1910. The Marine Biological Station of San Diego. A sketch of its 
history and purposes. Frye and Smith, San Diego, 41 pp., 
2 pls., 6 figs. in text. 
1911. Work of the Marine Biological Station of San Diego during the 
summer of 1911. Science, 34, 480-483. 
Ritter, W. E., AND BaILey, 8. E. 
1908. On the weight of developing eggs. Univ. Calif. Publ. Zool., 6, 
1-10. 
RitTEr, W. E., AND Davis, B. M. 
1904. Studies on the ecology, morphology, and speciology of the young 
of some Enteropneustra of Western North America. Univ. 
Calif. Publ. Zool., 1, 171-210, pls. 17-19, 1 fig. in text. 
