SPACE FACTOR AND GROWTH RATE 151 



BEFEREJJCES: 



Adolph, E. F. , 1931 - "The size of the body and the size of the environment in the growth 



of the tadpoles." Biol. Bull. 6l:550. 

 Allee, W. C, I93I - "Animal Aggregations." Chicago Univ. Press. 

 Bilski, F., 1921 - "ITber den Elnfluss des Lehensraunis auf das Wachstum der Kaulquappen. " 



Pfluger's Arch. 188:251+. 

 Brown, M. G., 19^2 - "An adaptation in Amblystoma opaciun to development on land." Am. 



Nat. 76:222. 

 Dempster, W. T. , I933 - "Growth in Amblystoma piinctatum during the embryonic and early 



larval period." Jour. Exp. Zool. 6k :k^^. 

 Goetsch, W. , 19214- - "Lebensraum und Korpergrosse. " Biol. Zentralbl, 41^:529. 

 Hutchinson, C, 1959 - "Some experimental conditions modifying the growth of amphibian 



larvae." Jour, Exp. Zool. 82:257 (See also 1958: Anat. Bee. 71:69). 

 Krizenecky, J., I928 - "Studlen uber die Punktion der im Wasser gelosten Nahrsubstanzen im 



Stoffwechsel der Wassertlere. " Zelt. vergl. Physiol. 8. 

 Lynn, W. G. & A. Edelman, 1956 - "Crowding and metamorphosis in the tadpole." Ecology. 



17:10l|. 

 Merwln, R. M. & W. C. Allee, 191+5 - "The effect of low concentrations of carbondioxlde on 



the cleavage rate in frog's eggs." Ecology. 2l+:6l. 

 Merwin, E. M., 1914-5 - "Some group effects on the rate of cleavage and early developnent 



of the frog's egg." Phys. Zool, I8:l6. 

 Pollister, A. W. & J. Moore, 1957 - "Tables for the normal development of Bana sylvatlca. " 



Anat. Bee. 68:14-89. 

 Bugh, E., I95I4 - "The space factor in the growth rate of tadpoles." Ecology. 15:14-07. 

 Eugh, B., 1955 - "The spectral effect on the growth rate of tadpoles," Physiol, Zool. 8. 

 Shaw, G,, 1952 - "The effect of biologically conditioned water upon the rate of growth In 



fishes and amphibia," Ecology. 15:265. 

 Shxuaway, W., I9I+0 - "Normal stages in the development of Bana plpiens." Ar^t. Bee. 78. 

 Yung, E., 1885 - "De I'lnfluence des variations der milieu physlcochemique sur le 



developpement des animaux," Arch, des Phys. et Nat. Il4:502. 



"The value of a scientific hypothe s is depends , it seems 

 to me, first on the possibility of testing it by direct ob- 

 servation, or by exper iment ; second, on whether it leads to 

 advance; and, lastly, on its elimination of certain possi- 

 bilities. " 



T. H. Morgan 



"The ground motive of science is a high order of curi- 

 osity, led on by ambit ion to overcome obs tac les . " 



Osborne 



'In science you must not talk before you know. 



Ruskin 



