Prcto Parvis-Raw 



in 



nervous cells during development in relation with their degree of 

 growth and functional maturity. We study spinal motor-cells; receptive 

 ganglion-cells: Purkinje's cells of cerebellum: pyramidal cells. Moreover 

 the cell development of the trigeminal nerve's mesencephalic nucleus and 

 that of spinal ganglia were studied comparatively. (Methods: Toluidine 

 blue or Unna-Pappenheim and ribonuclease: Piekarsky-Robinow; Feul- 

 gen: Golgi: Cajal). Felis domestica (Carnivora) 



b. Morphological and histochemical studies of histogenesis of chondroid 

 and mucous tissues. We study the mucous tissue of the cox-comb: the 

 peculiar connective tissue of the renal papilla; the tissues of the inter- 

 vertebral disk. (Aves and Mammalia) 



c. Histochemical study of histogenesis of cartilage. Mus rattus (Rodentia) 

 (in collaboration with G. RONCORONI) 



d. Quantitative study about the pre- and post-natal increase of cerebellar 

 cortex and of its different strata, with particular reference to the evolu- 

 tive cycle of the so called , .stratum of the embryonic granules". Felis 

 domestica (Carnivora) 



e. Modifications in the histochemical characters of squamous stratified epi- 

 thelia during the development, in connection wath the modifications of the 

 external medium. (Amphibia, Mammalia) 



PRIESCHING. A. M.D. — Anat. Inst, der Univ. Wien, Wahringerstr. 13, 



WIEN IX, Oesterreich 

 PROP, N. B.Sc. — Anat.-Embryol. Lab. der Rijks Univ.. Oostersingel 69, 

 GRONINGEN. Holland 



a. Development of the egg by means of vital staining. Ambystoma (Uro- 

 dela) 



b. Chemical differentiation in the neural plate. Ambystoma (Urodela) 

 PUJIULA. J, S. I. M.I.E., M.R.Ac. Med. — Inst. Biol, de Sarria, Dr Ami- 



gant 14, BARCELONA, Sarria, Espana 



a. Irrigacion sanguinea de las articulaciones. 



b. El sistema trino: epifisis, gliindula genital, timo. 



c. Origen de los megacariocitos. 



QUfiNU. L. Dr en Med. — Lab. des Travaux Anat., Fac. Med. Nouvelle. 

 45 Rue des Sts Peres, PARIS Vie. France 

 a. Developpement de I'appareil respiratoire. Homo (Primates) 

 QUEREUX, P. Dr en Med. — Lab. des Travaux Anat., Fac. Med. Nou- 

 velle. 45 Rue des Sts Peres, PARIS Vie, France 

 a. Developpement du systeme brcnchopulmonaire. Homo (Primates) 

 QUERNER. H. Dr rer.nat. — Inst, fiir exp. Krebsforschung der Univ. 

 Heidelberg, Voszstrasse 3. HEIDELBERG. Deutschland 



a. Hormonphysiologische LIntersuchungen. (Cyprinodontidae, Teleostei) 



b. Diffcrcnzierung primarer und sekundarer Geschlechtsorgane in vitro. 

 (Cyprinodontidae, Teleostei) 



RADECKA, Mrs E. ERDMAN M.Ph. — Zaklad Zool. Ogolnej. Inst. 

 Zool.. Uniw.we Wroclawiu, ul.Sienkiewicza 21. WROCLAW, Poland 

 a. The morphogenetical functions of the thyroid gland and hypophysis. 

 (Amphibia, Reptilia, Aves) 

 RAE— WICKHAM. Mrs C. A. B.Sc. — Dcpt of Zool.. Univ. of New 

 England, ARMIDALE, N.S.W., Australia 

 a. Endocrine organs and their developmental role. Blattella germanica L., 

 Periplaneta spp. (Dictyoptera, Insecta) 



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