248 GENETIC STUDIES ON THE SILKWORM 
20I-2IÖ. 
31) Bridges, C. B. 
1914 a. The Chromosome Hypothesis of Linkage Applied to Cases 
in Sweet Peas and Primula. Amcr. Nat. Vol. XLVIII, pp. 524- 
534- 
32) Castle. W. E. and Wright. S. 
191 5. Two Color Mutations of Rats which show Partial Coupling. 
Science, N. S. Vol. XLII, pp. 193-195. 
33) Collins. G. N. 
191 2. Gametic Coupling as a Cause of Correlations. Amcr. Nat. 
Vol. XLVI, pp. 569-590. 
34) Correns. C. 
191 2. Die neuen Vererbungsgesetze. Berlin. 
35) East. E. M. 
191 5. The Chromosome View of Heredity and its Meaning to Plant 
Breeders. Amcr. Nat. Vol. XLIX, pp. 457-494. 
36) Emerson, E. A. 
1911. Genetic Correlation and Spurious Allelomorphism in Maize. 
. Inn. Rep. Nebraska Agric. Exp. Stat. 24, pp. 59—90. 
3;) Engeldow, F. L. 
191 5 a. Repulsion in Wheat. Amcr. Nat. Vol. XLIX, p. 127. 
38) Engeldow. E. L. and Yule, G. U. 
191 5. The Determination of the Pest Value of the Coupling from 
a given Set of Data. Ibid. pp. 127-128. 
39) Gregory. R. P. 
i9ria. Experiments with Primula sinensis. Jour. Gen. Vol. I, pp. 
73~ r 32. 
191 1 b. On Gametic Coupling and Repulsion in Primula sinensis. 
Proc. Roy. Soc. London, S. B. Vol. 84, pp. 12-15. 
40) Hagedoorn, A. L. 
191 2. The Gametic Factors in the Development of the House- 
