2 Cod. 
IV. Coelenterata. 
[1921] 
I.— TITLES. 
1. - — Bedot, M. Notes systematiques 
sur les Plumularides. Rev. Suisse Zool. 
Geneve 28 1921 pp. 311-35G. 
2. — Bedot, M. Notes systematiques 
sur les Plumularides. Rev. Suisse Zool. 
Geneve 29 1921 pp. 1-40. 
3. — Bell, A. Notes on the later 
Tertiary Invertebrata. Ann. Rep. 
Yorkshire Phil. Soo. for 1920 1921 
21 pp. 2 pis. 
4. — Benoit, P. Les gonopliores fe- 
melles de Tubularia mesembryanthemum 
Alim. C. R. Acad. Sci. Paris 173 1921 
pp. 171-4. 
5. — Billard, A. Note sur une variete 
de Sertularella ( Sertularella diaphana 
madagascariensis ) Bui. Museum Paris 
for 1921 1921 pp. 184-6 t.f. 
6. — Bodensky, M. Biochemical 
studies on marine organisms. II. The 
occurrence of zinc. J. Biol. Chem. New 
York 44 1920 pp. 399-407. 
7. — Boecker, E. Regenerationsver- 
suche an knospenden Hydren. Biol. 
Centralbl.. Leipzig 41 1921 pp. 119-121. 
8. — Briggs, E. A. A crawling jelly- 
fish from Port Jackson. Austral. Mus. 
Mag. Sydney 1 1921 pp. 20-21 fig. 
9. — Cary, L. R. Studies on the 
physiology of the nervous system of 
Cassiopea xamachana. Papers Dept. 
Marine Biol. Carnegie Inst. Washington 
11 1921 pp. 121-170. 
10. — Cary, L. R. A study of respira- 
tion in Alcyonaria. Papers Dept. 
Marine Biol. Carnegie Inst. Washington 
12 1918 pp. 187-191. 
11. — Cayeux, L. Existence de nom- 
breux spicules d’Alcyonaries dans les 
minerais de fer jurassiques de France. 
C. R. Acad. Sci. Paris 172 1921 pp. 
987-8. 
12. — Charlesworth, J. K. Ueber unter- 
devonische Riffkorallen aus den Kana- 
rischen Alpen. Jahresber. Ges. vaterl. 
Cultur Breslau for 1914 1 (6) c. 1915 
pp. 170-209. 
13. — Chapman, F. On the occurrence 
of Tetradium in the Gordon River 
Limestone, Tasmania. Rec. geol. surv. 
Tasmania Hobart 5 1919 pp. 5-10. 
14. — Chapman, F. New or little- 
known Victorian fossils in the National 
Museum. Proc. R. Soc. Victoria 
33 (N.S.) 1921 pp. 212-225 3 pis. 
15. — Child, C. M. The axial gradients 
in Hydrozoa. Biol. Bull. Wood’s Hole 
Mass. 41 1921 pp. 78-97. 
16. — Clark, F. W. & Wheeler, C. The 
Inorganic Constituents of Marine In- 
vertebrates. Prof. Paprs. U.S. geol. 
surv. Washington 102 1917 pp. 1-56. 
17. — Clarke, J. M. Organic depen- 
dence and disease. New York State 
Mus. Bui. Albany Nos. 221 222 1921 
pp. 113 figs. * 
18. — Collip, J. B. The alkali reserve 
of marine fish and invertebrates. The 
excretion of carbon dioxide. J. Biol. 
Chem. New York 44 1920 pp. 329-344. 
19. — Cotte, J. Sur le phototropisme 
des Actinies. C. R. Soc. biol. Paris 85 
1921 pp. 188-192. 
20. — Dantan, J. L. Recherohes sur 
les Antipathaires. Arch. anat. microsc. 
Paris 17 1921 pp. 137-245 pis. 12-21 t.ff. 
21. — Davis, W. M. Koraalriffen en 
bodembewegingen. Nat. Tijdschr. Ba- 
tavia 79 1919 pp. 27-40 t.ff. 
22. — Davis, W. M. Coral reefs and 
crustal movements. Nat. Tijdschr. 
Batavia 79 1919 pp. 40-45. 
23. — Davis, W. M. The coral reefs 
of Tutuila, Samoa. Science New York 
N.Y. 53 1921 pp. 559-565. 
24. — Dehorne, Y. Repartition des 
Chaetetides et des Stromatoporides 
dans les terrains cretaces de la Basse- 
Provence. C. R. soc. g6ol. France 
Paris for 1918 1918 pp. 39-40. 
25. — Dietrich, W. 0. Gegenantwort 
an Herrn Heritsch (see 44 p. 30). 
Centralbl. Min. Stuttgart for 1921 
1921 pp. 31 & 32. 
