44 



Indiana University Studies 



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Jennings, H. S. 1908 Heredity, variation, and evolution in protozoa. 

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1909 Heredity and variation in the simplest organisms. 

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1913 The effect of conjugation in Paramecium. Jour. Exp. 

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1917a. Modifying factors and multiple allelomorphs 

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JOHANNSEN, W. 1903. Ueber Erblichkeit in Populationen und in rei- 

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1916 Some results of continued selection in Hydra. Journ. 

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Love, H. H. 1910 Are fluctuations inherited? Am. Nat., 44: 412-423. 



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May, H. G. 1917 Selection for higher and lower facet numbers in the 

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MacDowell, E. C. 1915 Bristle inheritance in Drosophila. 1. Journ. 

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1916a Piebald rats and multiple factors. Am. Nat., 50: 

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1917 Bristle inheritance in Drosophila. 2. Journ. Exp. Zool., 

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Morgan, T. H. 1916 A critique of the theory of evolution. 197 pp. 

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