REFERENCES TO THE LITERATURE 241 



LANGLET, J. N. AND SEWALL, H. 1879 On the changes in pepsin-forming glands 



during secretion. J. Physiol., vol. 2, pp. 281-301; Proc. Roy. Soc., 



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 LANGLEY, J. N. 1882 On the histology of the mammalian gastric glands, and 



the relation of pepsin to the granules of the chief cells. J. Physiol., 



vol.3, pp. 269-291. 

 LANGLOIS, J. P. AND LOIR, A. 1902 La resistance des rats et des insectes & 



1'acide carbonique et a 1'acide sulfureux. Compt. rend. Soc. de biol., 



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 LANTZ, DAVID E. 1907 Methods of destroying rats. U. S. Dept. of Agr. 



Farmers' Bull. no. 297. Government Printing Office, Washington, D. C. 



1909 The brown rat in the United States. U. S. Dept. of Agr., Biol. 

 survey, Bull. no. 33, Washington, D. C., pp. 12-13. 



1910 Natural history of the rat. Found in "The rat and its relation 

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1910 a Natural enemies of the rat. Found in "The rat and its rela- 

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Washington, D. C. 



1910 b The rat as an economic factor. Found in "The rat and its 



relation to the public health," pp. 215-226. Treasury Dept. Pub. 



Health and Mar.-Hospt. Service of the U. S. Government Printing 



Office, Washington, D. C. 

 LAPICQUE, Louis 1907 Difference sexuelle dans le poids de Pence'phale chez 



les animaux. Rat et moineau. C. R. Soc. Biol., Paris, vol. 63, pp. 



746-748. 

 LAPICQUE, Louis AND GIRARD, P. 1907 Sur le poids de I'enc6phale chez les 



animaux domestiques. Societe de Biol., vol., 62, p. 1015. 

 LAPICQUE, Louis AND LEGENDRE, R. 1911 Sur les rats noirs du Jardin des 



Plantes. Bull, du Museum d'histoire naturelle, no. 6, pp. 1-5. 

 LASHLET, K. S. 1912 Visual discrimination of size and form in the albino rat. 



J. Animal Behavior, vol. 2, pp. 310-331. 

 LAUBER, HANS 1901 Beitrage zur Anatomic des vorderen Augenabschnittes der 



Wirbeltiere. Anat. Hefte, vol. 18, pp. 371-453. Mus rattus, p. 427. 

 LAVERAN, A. AND MESNIL, F. 1900 Sur 1' agglutination des trypanosomes du 



rat par divers scrums. C. R. Soc. de Biol., Nov. 10, p. 939. 



1900 a De la longue conservation a la glaciere des trypanosomes du 



rat et de I'agglomdration de ces parasites. C. R. Soc. de Biol., Oct. 6, 



p. 816. 



1900 b Sur le mode de multiplication du trypanosome du rat. C. R. 



Soc. de Biol., Nov. 17, p. 976. 

 LAVRINOVICH, M. O. 1910 Extermination of rats in St. Petersburg by cultures 



of Danich's bacilli. Vestnik. Obsh. vet., St. Petersb., vol. 22, p. 885. 



(Russian.) 

 LEBOEUF, A. 1912 Existence de lepra murium (lepre des rats) en Nouvelle 



Caiedonie. Bull. Soc. path, exot., vol. 5, pp. 463-465. 



