250 THE BIOLOGY OF MARINE ANIMALS 



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35. Gross, F., "Zur Biologie und Entwicklungsgeschichte von Noctiluca 

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36. Hall, V. E., "The muscular activity and oxygen consumption of Urechis 

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37. Hamilton, J. E., "The leopard seal Hydrurga leptonyx" 'Discovery Rep., 

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38. Hancock, D. A., "The feeding behaviour of starfish on Essex oyster beds," 

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39. Hardy, A. C. and Gunther, E. R., "The plankton of the South Georgia 

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40. Harley, M. B., "Occurrence of a filter-feeding mechanism in the poly- 

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41. Hartley, C. H. and Fisher, J., "The marine foods of birds in an inland 

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42. Hartley, P. H. T., "The Saltash tuck-net fishery and the ecology of some 

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43. Harvey, H. W., Recent Advances in the Chemistry and Biology of Sea Water 

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44. Harvey, H. W., "On the production of living matter in the sea off Ply- 

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45. Helfer, H. and Schlottke, E., "Pantapoda," Bronns Klassen, 5, IV Abt., 

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46. Hopkins, D. L., "The relation between food, the rate of locomotion and 

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47. Hoyle, G., "Spontaneous squirting of an ascidian, Phallusia mammillata," 

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48. Hyman, L. H., The Invertebrates: Protozoa through Ctenophora (London, 

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50. Ifft, J. D. and Zinn, D. J., "Tooth succession in the smooth dogfish, 

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50a. Jennings, J. B., "Studies on feeding, digestion, and food storage in free- 

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51. Jensen, A. S., "Do the Naticidae drill by mechanical or by chemical 

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52. Jorgensen, C. B., "Quantitative aspects of filter feeding in invertebrates," 

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53. Kitching, J. A., "On suction in Suctoria," Colston Papers (Proc. 1th Symp. 

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54. Knight- Jones, E. W., "Feeding in Saccoglossus (Enteropneusta)," Proc. 

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55. Lack, D., "The ecology of closely related species with special reference to 

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 14, 12 (1945). 



