Ilia. 13. 138 Ilia. 17. 



}. Development of coiling in the intestine of anuran tad- 

 poles. Rana pipiens. Norman E. KEMP 



}. Intestinal canal can only be formed in the whole embryo; 

 in the extirpated entoderm no canal formation ever oc- 

 curs. By combination of entoderm fragments with 

 different parts of mesoderm in explants the formation of 

 the intestinal canal may be studied. Rana nigromaculata. 



Miss M. P. TSENG 



J. Origin and development of the oesophageal epithelium 

 in Batrachians. Z. VACEK 



M. Changes in the proctal epithelium in its embryonic and I. 13. 



postfetal development, in grown up individuals of dif- Hid. 4. 



ferent ages, and under pathological circumstances, with 

 special regard to its microtopographic situation. Ade- 

 quate experiments on animals. Man and dog. 



S. KROMPECHER and Z. ZAKARIAS 



14. Respiratory-organs (including swim-bladder). 



15. Heart, vascular system and blood. 



Heart. 



J. Experimental analysis of the development of the heart. 



Bufo arenarum. W. A. FERREIRA 



and R. E. GONZALEZ MARINO 



M. Structure of the coronary arteries at birth. Homo. I. 15. 



W. F. WINDLE 



L. Le developpement du systeme vasculaire. (coeur et 

 systeme vasculaire embryonnaire et extra-embryon- 

 naire). Gallus domesticus. F. STEPHAN 



Vascular system and blood. 



I. Development of blood and vascular system. Petromyzon- 1.15. 



tidae (Cyclostomes) and Amia, Lepidosteus (Osteo- 

 ganoids). L. RAUNICH 



J. Blood island-development and differentiation in amphi- 

 bians. Hyla regilla. R. L. FERNALD 



16. Coelomic cavity, endothelia, lymphatic system and connective 

 tissue. 



M. ? Tissue culture of normal and damaged endothelium. 

 Mammalia (?). R. ALTSCHUL 



17. Urogenital system (development and structure), sex deter- 

 mination. 



General subjects. 



D. Field organisation of the genital imaginal disc. Droso- Illb. 17. 

 phila species. E. HADORN IIIc. 2. 



E. Recherches sur le developpement embryonnaire de Tap- II. 17. 

 pareil genital hermaphrodite de divers Gastropodes, . IV. 5 

 differenciation gametes. Calyptraea (Prosobranches) et 

 Pulmonis divers. M. de LARAMBERGUE 



