b. Physical changes at fertilization. (Echinoidea) 

 ALTEN, P. J. VAN M.S., Ph.D. — Dept. of Anat., Coll. of Med., Univ. 

 of Illinois, 1853 W.Polk St.. CHICAGO 12, 111., U.S.A. 



a. Development of the digestive tract. Gallus domesticus (Aves) 



b. Ontogeny of the immunological mechanism. Gallus domesticus (Aves) 

 AMANUMA, A. M.Sc. — Dept. of Biol., Fac. of Sci., Osaka City Univ., 



Sugimoto-cho, Sumiyoshi-ku, OSAKA, Japan 



a. Experimental analysis of the development of the primordial germ cells. 

 (Amphibia) 



b. Hormonal effect on gonadal development. (Amphibia) 

 AMOROSO, E. C. F.R.S., M.I. I.E., Prof. — Dept. of Physiol., Roy. Veter. 



Coll., (Univ. of London), Royal College St., LONDON N.W. 1, Eng- 

 land 

 AMPRINO, R. M. M.D., M.I.I.E., Prof. — Inst, of human Anat., Fac. of 

 Med., Policlinico, BARI, Italy 



a. Relations between ectoderm and mesoderm in the morphogenesis of the 

 wing. Gallus domesticus (Aves) 



b. Regulative capacities of the wing anlage. Gallus domesticus (Aves) 



c. Analysis of the twinning of limb buds. Gallus domesticus (Aves) 



d. Histological and histochemical changes in the developing tissues of di- 

 minutive eye-bulbs. Gallus domesticus (Aves) 



AMY. R. L. M.S., Ph.D. — Dept. of Biol., Southwestern at Memphis, 

 MEMPHIS 12, Tenn., U.S.A. 



a. Relative sensitivity of various developmental stages to ultraviolet light 

 ( photoreactivation studies to be included). Habrobracon juglandis (Hy- 

 menoptera) 



b. Descriptive embryology. Habrobracon juglandis (Hymenoptera) 

 ANCEL, P. A. Dr., F.I.I.E., Prof. (Honor., Emer.) — Inst, de Biol. Physico- 



Chimique, 13 Rue Pierre Curie, PARIS Ve, France 

 ANDERS, G. Dr.Phil. — Zool.-vergl. Anat. Inst., Naturw. Fak., Univ. Zu- 

 rich, Kiinstlergasse 16, ZURICH 6, Schweiz 

 ANDERSON, D. T. B.Sc, Ph.D. — Dept. of Zool., Univ. of Sydney. 



SYDNEY, N.S.W., Australia 

 a. Embryology. (Diptera; Isoptera) 

 ANDERSON, J. W. B.A., M.S., Ph.D. — Dept. of Anat., Bardeen Med. 



Labs., Univ. of Wisconsin, MADISON 6. Wis., U.S.A. 

 a. Comparative histophysiology of placentas and fetal membranes, especially 



protein transfer. Sus scrofa ( Artiodactyla) , Geomys bursarius. Rattus 



norvegicus, Cavia cobaya (Rodentia), Eptesicus fuscus, Noctilio labialis 



(Chitoptera) , Canis familiaris (Carnivora) 

 ANDO, S. B.Sc, M.A. — Research Inst, of Environmental Med., Nagoya 



Univ., Furo-cho, Chikusa-ku, NAGOYA, Japan 

 a. Electrophysiological study of development of nerve system. Oryzias 



latipes (Teleostei) 

 ANDREOLI, Miss V. Dr. — 1st. di Biol, gen., Fondazione Agraria, S. 



Pietro, PERUGIA, Italia 

 a. Morfogenesi proteica. 

 ANDRES, G. Dr., M.I. I. E. — Zool. Inst, der Johannes Gutenberg-Univ.. 



Saarstr. 21, MAINZ, Deutsche Bundesrepublik 

 ANDRES, M. Y. D.V.M., M.Sc, Ph.D. — Dept. of Veter. Anat., Ohio 



State Univ., 1900 Coffey Road, COLUMBUS 10, Ohio, U.S.A. 



