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. Mitotic rhythm in reduced weight (weight below water) during cleavage.
Psammechinus microtuberculatus (Echinoidea)
W. L. M. GEILENKIRCHEN. Utrecht)
(in collaboration with
c. Synchronization of cell division in mass cultures of various cell types,
by control of environmental factors. Tetrahymena pyriformis (Holotricha,
Ciliata)
ZOTIN, A. I. Cand. Biol. Sci. — Inst, of Animal Morphol. "A. N. Severtsov"
'of the Acad, of
MOSKOU. Russia
Sci. of the U.S.S.R., B. Kaloezjskaja oel., d. 33,
a. Study of the water content of embryos. Acipenser steliatus Pallas, A.
giildenstadti Brandt, Huso huso (Acipenseriformes, Teleostei): Salmo
salar morpha sebago Girard, Coregonus lavaretus baeri natio swirensis
Pravdin (Clupeiformes, Salmonidae, Teleostei)
ZOUTEWELLE, W. B.Sc. — Zool. Lab. der Rijks
UTRECHT. Holland
Univ.. Janskerkhof 3,
a. Influence of various kations on development. Limnaea stagnalis (Gastropoda)
(in collaboration with W. L. M. GEILENKIRCHEN and Chr. P.
RAVEN)
ZUCCARELLO—POLLICITA, Mrs M. Dr — 1st. di Zool., Via Archirafi
18, PALERMO, Italia
a. The action of xenoplastic embryo extracts on explants. (Amphibia)
ZUCKERMAN, S. M.A., M.D., D.Sc, M.R.C.S., L.R.C.P., F.R.S., Prof.
— Dept of Anat., The Med. School, Birmingham Univ., Edgbaston,
BIRMINGHAM 1, England (U.K.)
(no embryological work in progress)
ZWEIBAUM, J.
Dr, Prof. — Inst, of Histol. and Embryol., Acad, of Med.,
ul. Chalubinskiego 5, WARSZAWA, Poland
(no embryological work in progress)
ZWILLING, E. Ph.D. — Dept of Anim. Genet., Coll. of Agric, Univ. of
Connecticut, Storrs Agric. Exper. Stat., STORRS, Conn., U.S.A.
a. Disaggregation and reaggregation of early embryos. Effects on differentiation.
Gallus domesticus (Aves)
b. Culture behavior of early embryonic tissues. Gallus domesticus (Aves)
c. Ectoderm-mesoderm interaction in limb development. Gallus domesticus
(Aves)
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