REFERENCES TO THE LITERATURE 255 



RETZIUS, A. 1841 Ueber den Bau des Magens bei den in Schweden vorkommen- 

 den Wuhlmausen (Lemmus Nilss., Hypudaeus Jllig.) (A. d.Schwed. 

 von F. C. H. Creplin.) Taf. XIV. fig. 2-9. Archiv. fur Anat. u. 

 Physiol., pp. 403-420. Comparisons with Mus decumanus. 



RETZIUS, GUSTAF 1893 Biologische Untersuchungen, Neue Folge V. 2. Stud- 

 ien iiber Ependym und Neuroglia, pp. 9-15. Samson &Wallin. Stock- 

 holm. 



1894 Biologische Untersuchungen. Neue Folge VI, 1. Die Neuro- 

 glia der Neurohypophyse der Saugetiere, pp. 1-28. Samson & Wallin, 

 Stockholm. 



1909 Biologische Untersuchungen, 14. Die Spermien der Nagetiere. 

 Taf. XL-XLVIII, Taf. XLIX, fig. 13-20, pp. 133-162. p. 160, Mus 

 norvegicus Erxl. (Mus decumanus Pall) Neue Folge, XIV. Gustav 

 Fischer, Jena. 



RICHARDSON, FLORENCE 1909 A study of sensory control in the rat. Psych. 

 Monographs, vol. 12, no. 1, pp. 1-124. 



RINGELING, H. G. 1912 Naar aanleiding van een opvallende sterfte onder de 

 ratten aan boord van een stoomschips te Amsterdam. Tijdschr. v. 

 sociale hyg. Zwolle, xiv, 29-53. 



RITZEMA-BOS, J. 1894 Untersuchungen tiber die Folgen der Zucht in engster 

 Blutverwandtschaft. Biol. Centralbl., vol. 14, pp. 75-81. 



ROBERTSON, T. B. 1908 On the normal rate of growth of an individual and its 

 biochemical significance. Arch. f. Entwcklngs-mechn. d. Organ., vol. 

 25, pp. 571-614. 



1912 Studies in the blood relationship of animals as displayed in the 

 composition of the serum proteins. I. A comparison of the serum of 

 the horse, rabbit, rat and ox with respect to their content of various 

 proteins in the normal and in the fasting condition. J. Biol. Chem., 

 vol. 13, p. 325. 



ROBERTSON, T.B. AND BURNETT, T.C. 1913 The influence of lecithin and chol- 

 esterin upon the growth of tumors. J. exper. Med., vol. 17, pp. 344- 

 352. 



ROBINSON, ARTHUR 1889 Observations on the early stages in the development 

 of the lungs of rats and mice. J. of Anat. u Physiol., vol. 23, pp. 224- 

 241. 



1892 Some points in the early development of Mus musculus and 

 Mus decumanus; the relation of the yolk-sac to the decidua and the 

 placenta. Rep. Brit. Assoc. Adv. Sc., 61st Meeting, Cardiff, pp. 690- 

 691. 



1892 a Observations upon the development of the spinal cord in Mus 

 musculus and Mus decumanus. Rep. Brit. Assoc. Adv. Sc., 61st meet- 

 ing, Cardiff, pp. 691-692. 



1896 On the formation and structure of the optic nerve, and its rela- 

 tion to the optic stalk. J. Anat. and Physiol., vol. 30, pp. 319-333. 

 1904 Lectures on the early stages in the development of mammalian 

 ova and on the differentiation of the placenta in different groups of mam- 

 mals. J. Anat. and Physiol., vol. 38, pp. 186-204. 



