LITERATURE CITED 75 



STROMSTEN, F. A. 1912 On the development of the prevertebral (thoracic) 



ducts in turtles as indicated by a study of injected and uninjected 



embryos. Anat. Rec., vol. 6. 

 WENCKEBACH, K. F. 1886 Beitrage zur Entwicklungsgeschichte der Knochen- 



fische. Archiv mikr. Anat., Bd. 28. 

 WEST, R. 1914 The origin and early development of the posterior lymph heart 



in the chick. Anat. Rec., vol. 8. 



1915 The origin and early development of the posterior lymph heart 



in the chick. Am. Jour. Anat., vol. 17. 



