Zim-Zwi 



ZIMMERMAN, A. A. M.I. I.E., Prof. — Dept. of Anat, Coll. of Med., Bay- 

 lor Univ., HOUSTON, Texas, U.S.A. 



ZIMMERMANN, W. Dr.rer.nat. — Abt. f. Entwicklungsphysiol., Max 

 Planck Inst. f. Tierzucht, MARIENSEE (3051) ub. Wunstorf, Deutsche 

 Bundesrepublik 

 a. Histochemistry of the nidation process. Oryctolagus cuniculus (Lagomor- 

 pha) 



ZOTIN, A. I. Dr.Biol.Sci. — Inst, of Animal Morphol., Acad, of Sci. of the 

 U.S.S.R., First Academic St. 12, MOSCOW V-133, U.S.S.R. 

 a. Mechanism of cytokinesis in the cleavage of eggs. Strongylocentrotus 

 droebachiensis (Echinoidea) , Amby stoma mexicanum (Urodela), Aci- 

 penser giildenstadti (Chondrostei) 



ZWAAN, J. Med.drs. — Anat.-Embryol. Inst., Univ. of Amsterdam, Mau- 

 ritskade 61, AMSTERDAM O., Netherlands 

 a. Immunochemical studies of lens proteins in eye-development. Gallus do- 

 mesticus (Aves) 



ZWEENS (ten KATE), Mrs. I. B. Med.Drs., Physician — Dept. of Anat. 

 and Embryol., State Univ. of Groningen, Oostersingel 69, GRONIN- 

 GEN, Netherlands 

 a. Development of the epiphysis. Mus norvegicus albinus (Rodentia) 



ZWILLING, E. Ph.D., F.I.I.E. — Dept. of Biol., Brandeis Univ., WALT- 

 HAM 54, Mass., U.S.A. 



a. Disaggregation and reaggregation of early embryos. Effects on differ- 

 entiation. Gallus domesticus (Aves) 



b. Culture behaviour of early embryonic tissues. Gallus domesticus (Aves) 



c. Ectoderm-mesoderm interaction in limb development. Gallus domesticus 

 (Aves) 



184 



