References 513 



Jenkin, P. M., 1937, Oxygen production by the diatom Coscinodiscus excentricus 

 Ehr. in relation to submarine illumination in the English Channel, /. Marine 

 Biol. Assoc. United Kingdom, 22: 301-342. 



Jenner, C. E., 1951, Photoperiodism in the fresh-water puknonate snail, Lymnaea 

 palustris, Ph.D. thesis, Harvard University. 



Jerlov, N. G., 1951, Optical studies of ocean waters, Repts. Swedish Deep-Sea 

 Expedition, 3, Physics and Chemistry, No. 1 : 1-59. 



Johnson, M. W., and O. B. Olson, 1948, The life history and biology of a marine 

 harpacticoid copepod, Tisbe f areata (Baird), Biol, Bull. 95: 320-332. 



Johnson, V. R., 1947, Breeding birds of the forest edge in Illinois, Condor, 49 

 (2): 45-53. 



Johnston, I. M., 1941, Gypsophily among Mexican desert plants, /. Arnold Arbore- 

 tum (Harvard Univ.), 22: 145-170. 



Jones, F. R. H., 1952, The swim bladder and the vertical movements of Teleostean 

 fishes. I. Physical factors. II The restriction to rapid and slow movements, 

 }. Exptl Biol, 28: 553-566; 29: 94-109. 



Juday, C, 1943, The summer standing crop of plants and animals in four Wis- 

 consin lakes. Trans. Wisconsin Acad. Sci., 34: 103-135. 



Keeble, F. W., 1910, Plant-animals: A Study in Symbiosis, Cambridge University 

 Press. 



Kellogg, C. E., 1941, The Soils That Support Us, Macmillan, New York. 



Kellogg, W. N., R. Kohler, and H. N. Morris, 1953, Porpoise sounds as sonar 

 signals, ScL, 117: 239-243. 



Kendeigh, S. C, 1944, Measurement of bird populations, Ecol. Monographs, 14: 

 67-106. 



Kendeigh, S. C, 1947, Bird population studies in the coniferous forest biome dur- 

 ing .a spruce budworm outbreak, Dept. Lands Forests, Ontario, Canada, Division 

 of Research, Biol. Btdl. 1. 



Kendrew, W. G., 1930, Climate, a Treatise on the Principles of Weather and 

 Climate, Oxford University Press. 



Kendrew, W. G., 1949, Climatology, Oxford University Press. 



Kessel, B., 1953, Distribution and migration of European starling in North Amer- 

 ica, Condor, 55: 49-67. 



Ketchum, B. H., 1947, The biochemical relations between marine organisms and 

 their environment, Ecol. Monographs, 17: 309-315. 



Ketchum, B. H., 1951, The flushing of tidal estuaries. Sewage and Ind. Wastes, 

 23: 198-209. 



Ketchum, B. H., and A. C. Redfield, 1949, Some physical and chemical charac- 

 teristics of algae grown in mass culture, /. Cellular Comp. Physiol, 33: 281-300. 



Kimball, H. H., 1928, Amount of solar radiation that reaches the surface of the 

 earth on the land and on the sea, and methods by which it is measured. Monthly 

 Weather Rev., 56: 393-399. 



Korringa, P., 1947, The relations between the moon and periodicity in the breed- 

 ing of marine animals, Ecol. Monographs, 17: 347-381. 



Kramer, G., 1952, Experiments on bird orientation. Ibis, 94: 265-285. 



Krauss, R. W., 1953, Inorganic nutrition of algae, Carnegie Inst. Wash. Publ. 600: 

 85-102. 



Krecker, F. H., and L. Y. Lancaster, 1933, Bottom shore fauna of western Lake 

 Erie; a population study to a depth of six feet, Ecol, 14: 79-93. 



