Ilia. 11. 137 Ilia. 13. 



//. Embryonic temporary endo- skeleton, skeleton, skull and joints. 



General subjects. 



G. The form of the pluteus in sea-urchin hybrids. Study Illb. 11. 

 of skeletal development and bodily form. Strong ylocen- IIIc. 2. 



trotus purpuratus, S. franciscanus and Dendraster 

 ezcentricus (Echinoidea) . A. R. MOORE 



Regeneration and differentiation of the notochord. Illb. 11. 

 Triton species. E. HADORN IV. 5. 



Skull. 



An attempt to determine the origin of the trabeculae 

 cranii and the branchial skeleton of the Lampetra 

 planed (Cyclostomata). D. R. NEWTH 



The development of the trabeculae cranii in perch 

 embryos treated with LiCl. Perca (Osteichthyes) . 



M. T. CLAES and G. VANDEBROEK 

 The development of the trabeculae cranii in perch em- 

 bryos from which the prosencephalon has been removed. 

 Perca (Osteichthyes). G. VANDEBROEK 



To study the influence of the optic vesicle on the Ilia. 10. 

 development of head skeleton and accessory organs of 

 the eye ball, by extirpation of the optic vesicle at tail 

 bud stage. Rana nigromaculata. Miss S. C. LI 



M. Comparative developmental morphology of bone for- 11.11. 



mation of dog skulls. Canis familiaris. J. F. GUBBINS 

 Truncal skeleton. 



L. Experimental analysis of the development of the appen- 

 dicular skeleton in the chick embryo. MASY 



M. The qualitative adaptation of the surface of embryonic I. 11. 



cartilage and bone, due to the influences of surrounding Illb. 11. 

 tissues. Exper. alteration of these circumstances. A IV. 5. 



causal and functional analysis on human embryos and 

 young animals. Man and cat. 



S. KROMPECHER and L. NfiBEL 



12. Muscular system. 



J. Further experimental modifications of muscle attach- 

 ments in Amblystoma. E. K. HALL 

 L. Developmental origin of the abdominal musculature by 

 means of carbon reference marks. Chick. 



Miss M. E. RAWLES and W. L. STRAUSS 

 M. The development of rat muscle. Mus norvegicus. 



J. S. NICHOLAS 



13. Alimentary tract. 



J. Localization of the factors which cause situs inversus 

 in tadpoles by defect and inversion experiments. Re- 

 moval and inversion of different parts of neural plate 

 and chorda-mesoderm, or chorda-mesoderm, or lateral 

 plate. Rana nigromaculata. Miss M. P. TSENG 



