222 B. R. WEIMER. 



BIBLIOGRAPHY. 

 Detweiler, S. R. 



'17 On the Use of Nile Blue Sulfate in Embryonic Tissue Transplantation. 



Anat. Rec., Vcl. 13. 

 Goodale, H. D. 



'17 The Early Development of Spelerpes bilineatus. Am. Jour. Anat., Vol. 12. 

 Smith, B. C. 

 '14 An Experimental Study of Concrescence in the Embryo of Cryptobranchus 



allegheniensis. Biol. Bull., Vol. 26. 

 Vogt, W. 



'25 Gestaltungsanalyse am Amphibienkeim mit ortlicher Vitalfiirbung. Arch, 

 f. Entw'mecii., Bd. 106. 



