REFERENCES TO THE LITERATURE 239 



King, Helen D. 1911 b The sex ratio in hybrid rats. Biol. Bull., vol. 21, 

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1913 Some anomalies in the gestation of the albino rat (Mus nor- 

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 1913 a The effects of formaldehyde on the brain of the albino rat. J. 

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1915 On the weight of the albino rat at birth and the factors that in- 

 fluence it. Anatomical Record, vol. 9, pp. 213-231. 



King, Helen D. and Stotsenburg, J. M. 1915 On the normal sex ratio and 

 the size of the litter in the albino rat (Mus norvegicus albinus) . Ana- 

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King, Jessie L. 1910 The cortico-spinal tract of the rat. Anat. Rec, vol. 4, 

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Kibkham, William B. 1910 Ovulation in mammals, with special reference to 

 the mouse and rat. Biol. Bull., vol. 18, pp. 245-251. 



Kirkham, William B. and Bubb, H. S. 1913 The breeding habits, maturation 

 of eggs and ovulation of the albino rat. Am. J. Anat., vol. 15, pp. 291- 

 317. Six excellent plates illustrating the egg in various phases. 



Klebs, E. 1891 Zur vergleichenden Anatomie der Placenta. Archiv. f. mikr. 

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Klein, Edwabd und Verson, E. 1871 Der Darmkanal. In Strieker's Hand- 

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Klein, E. 1875 The anatomy of the lymphatic system. II. The lung. Smith, 

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 guinea pig. Rat among other animals used. 



Kltjnzingeb, C. B. 1908 Ueber unsere Ratten und Mause, deren Schaden und 

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Knapp, Paul 1908 Experimenteller Beitrag zur Ernahrung von Ratten mit 

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Koch, Mathilde L. 1913 Contributions to the chemical differentiation of the 

 central nervous system. I. A comparison of the brain of the albino 

 rat at birth with that of the fetal pig. J. Biol. Chem., vol. 14, pp. 

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Koch, W. and Mann, S. A. 1909 A chemical study of the brain in healthy and 

 diseased conditions, with especial reference to dementia praecox. 

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Koch, Waldemab and Koch, Mathilde L. 1913 Contributions to the chemical 

 differentiation of the central nervous system. II. A comparison of 

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1913 a Contributions to the chemical differentiation of the central 

 nervous system. III. The chemical differentiation of the brain of 

 the albino rat during growth. J. Biol. Chem., vol. 15, pp. 423-448. 



