X ACKNOWLEDGEMENTS 



Journal of Neurophysiology, Fig. 10.19 



Journal of Physiology, Figs. 3.7, 8.30, 9.8, 9.14, 9.15, 10.3, 10.14 (a), 12.4 



National Geographic Magazine, Fig. 13.18 (b) 



Oceanic Birds of South America, Fig. 5.23 



Pacific Science, Fig. 1.1 



Le Parasitisme (Librairie de l'Universite Lausanne), Fig. 14.12 



Physiologia Comparata et Oecologia, Figs. 3.11, 9.13 



Physiological Zoology, Figs. 3.21, 4.12, 4.13, 12.14 



Proceedings of the Cambridge Philosophical Society: Biological Sciences, Fig. 6.5 



Proceedings of the National Academy of Sciences, Fig. 12.13 



Proceedings of the Royal Society: Series B, Figs. 4.21, 5.27, 8.11, 8.28, 8.33, 9.18, 



10.2, 10.4, 10.8, 10.12, 10.16, 10.18, 10.25, 11.1, 11.3, 11.7 (c), 12.8, 15.1 

 Proceedings of the Royal Society of Edinburgh, Fig. 5.16 

 Proceedings of the Zoological Society of London, Figs. 4.1, 11.12, 14.3 

 Quarterly Journal of Microscopical Science, Figs. 3.17, 5.6, 5.7, 5.13 (b), 5.14, 



5.19 (b), 7.1, 7.2, 8.2, 8.24, 9.3, 10.14 (b), 14.19, 14.21, 15.5 

 Rapports et Proces-Verbaux des Reunions: Conseil Permanent International pour 



l" Exploration de la Mer, Fig. 1.7 

 Schriften des Natunvissenshaftlichen Vereins fur Schleswig-Holstein, Fig. 5.18 

 Scientific Reports of the Great Barrier Reef Expedition, 1928-29, Fig. 15.14 

 Transactions of the Illuminating Engineering Society, Fig. 1.8 

 Transactions of the Royal Society of Edinburgh, Figs. 5.5, 5.21, 6.6, 6.9, 15.12 

 Verhandlungen der deutschen zoologischen Gesellschaft, Figs. 5.25, 13.19, 13.20 

 Zeitschrift fur vergleichende Physiologic, Figs. 3.2, 8.14, 12.1 

 Zeitschrift filr Zellf or schung, Fig. 10.20 

 Zoologia, Figs. 3.4, 3.5 

 Zoologica, Fig. 3.18 (a), (c), (d) 

 Zoologischer Anzeiger, Fig. 5.1 



Acknowledgement is made also to the following publishers for permission to 

 reproduce illustrations from their publications : 



Cambridge University Press: Frontispiece from Plant-animals: a Study in 



Symbiosis, F. Keeble 

 Gustav Fischer Verlag: Grundzuge einen Lehre vom Licht- und Farbensinn, 



Frolich 

 Methuen and Co., Ltd. : Fig. 72 from Adaptive Coloration in Animals, H. B. Cott 

 Prentice Hall, Inc.: Fig. 20 from The Oceans, their Physics, Chemistry, and 



General Biology, H. U. Sverdrup et al. 

 Volharding: Figs. 20 and 21 from Dissertation on the Utilization of Oxygen and 



Regulation of Breathing in Some Aquatic Animals, L. van Dam 



