INHERITANCE IN ASEXUAL REPRODUCTION 205 



but from general considerations it seems probable that this, 

 like the correlation of variations in the number of tentacles, is 

 due wholly to the similar action of environmental agents upon 

 parent and offspring. 



LITERATURE CITED 



y 



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1914 Experiments on inheritance in parthenogenesis. Ibid, vol. 205 B, 

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Annandale, N. 1906 The common Hydra of Bengal, its systematic position 

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Clarke, Jas. H. 1865 The anatomy and physiology of the vorticellidan para- 

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Davenport, C. B. 1904 Statistical methods. New York. 



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1914 b Notes on regression in a pure line of plant lice. Ibid, vol. 27, 

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Harris, J. A. 1912 A first study of the influence of starvation of the ascendants 

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