b Developmental morphology of the epibranchial organs. Coregonus (Coregonidae), Ctupea 



(Clupeidae), Citharinus (Characidae, Teleostci) 

 BERTOLINI. B. Dr.Biol.Sc. — 1st. di Anat. Comp. "Battista Grassi", Fac. di Sci., Univ. di 



Roma, Via A. Borelli 50, 00161 ROMA, Italia 

 a Ultrastructural cytochemistry of the various cell types in the oviduct during the reproduc- 

 tive cycle and under experimental conditions. (Amphibia) 

 b Subcellular localization of acid hydrolases in the acrosome of spermatozoa. Pacacenfcotus 



lividus (Echinoidea), Tritiicus cristatus (Urodela), Rattus nocvegicus (Rodentia) 

 BERTON. J. P. Dr. — Centre de Biol. Appl., Ecole de Perfectionnement Agric. 36 AZAY- 



le-FERRON, France 



— Unite de Rech. de Physiol. Placent., I.N.S.E.R.M. — U 11, Hop.St.Antoine. PARIS 



12e, France 

 a Role of mesonephros and metanephros in composition of amniotic and allantoic fluids 



(intra-uterine surgery). Ovis aties, Sus scrofa (Artiodactyla), Ovyctolagus cuniculus 



(Lagomorpha) 

 b Chorio-allantoic cell structure. Ovis aties. Sus scrota (Artiodactyla), Oryctolagus cuniculus 



(Lagomorpha) 

 c Hypertrophic compensatory response of fetal kidney to unilateral nephrectomy in vivo. 



Ovis aries, Sus scrofa (Artiodactyla), Oryctolagus cuniculus (Lagomorpha) 

 d Development of fetal lung after nephrectomy in vivo. Ovis aries, Sus scrota (Artio- 

 dactyla), Oryctolagus cuniculus (Lagomorpha) 

 BETCHAKU, T. D.Sc. — Dept. of Biol., Kline Biol. Tower. Yale Univ.. NEW HAVEN. 



Conn. 06520. U.S.A. 

 a In vitro study on the mechanism of contact inhibition in embryonic myocardioblasts 



(time-lapse cinematography and electron microscopy). Gallus domesticus (Aves) 

 b Cellular mechanism of formation of the regeneration blastema (tissue culture, time-lapse 



cinematography, autoradiography, electron microscopy and cytochemistry). (Planariidae, 



Turbellaria) 

 BETTANIN (BELGRANO). Mrs. S. Dr.Nat.Sci. — 1st. di Zool.. Univ. di Genova, Via 



Balbi 5, GENOVA, Italy 

 a Embryo development of a parthenogenetic marine form. Penilia avirostris (Cladocera, 



Crustacea) (in collaboration with N. DELLA CROCE) 

 b Growth of the embryo. Penilia avirostris (Cladocera, Crustacea) (in collaboration with 



N. DELLA CROCE) 

 c Formation of resting eggs. Penilia avirostris (Cladocera, Crustacea) (in collaboration with 



N. DELLA CROCE) 

 BETZ. T. W. Ph.D. — Dept. of Biol.. Fac. of Sci.. Carleton Univ.. OTTAWA I. Ont.. 



Canada 

 a Hormonal control of the functional differentiation of the duodenal mucosa and the retina 



in the embryo. Gallus domesticus (Aves) 

 b Hormonal and dietary control of embryonic growth. Gallus domesticus (Aves) 

 BEYNON, A. D. G. B.D.S. — Dept. of Oral Anat., The Dental School. Univ. of Newcastle 



upon Tyne, Northumberland Rd.. NEWCASTLE upon Tyne NEl 8TA, England, 

 a Development of the root and periodontal ligament of the molar teeth. (Rodentia) 

 BHAGAVAN, N. V. Ph.D. — Dept. of Anat., School of Med.. Univ. of Hawaii. 2538 The 



Mall, HONOLULU, Hawaii 96822. U.S.A. 

 BHATTACHERJEE. S. M.Sc. — Dept. of Zool., Presidency Coll., CALCUTTA-12. West 



Bengal, India 

 BHUSSRY, B. R. D.D.S., Ph.D., Prof. — Dept. of Anat.. School of Med.. Georgetown Univ., 



3900 Reservoir Rd., N.W.. WASHINGTON. D.C. 20007. U.S.A. 

 BIAGIONI. M. Dott. — 1st. di Biol. Gener., Fac. di Med.. Via del Giochetto. 06100 



PERUGIA, Italy 

 a Influenza del sali di cobalto sull'eritropoiesi. Oryctolagus cuniculus (Rodentia) 

 BIBORSKI. J. — Dept. of Reprod. Physiol., Inst, of Zootech.. A.Mickiewicza 24-28, KRAKOW, 



Poland 

 BIEBER. S. Ph.D. — Richard L. ConoUy Coll.. Long Island Univ., 385 Flatbush Ave.. 



Extension, NEW YORK, Brooklyn N.Y. 11201. U.S.A. 

 BIELA53SKA (OSUCHOWSKA). Mrs. Z. Dr., Prof. — Dept. of Histol. and Embryol., 



Fac. of Vet. Med.. Warsaw Agricult. Univ.. Grochowska 272. WARSZAWA. Poland 

 a Histochemical studies on differentiation of gonads. Sus domesticus (Artiodactyla) and other 



spp. (Verfebrata) 

 BIELKA. H. Dr.rer.nat.habil. — Inst, fiir Zellphysiol.. Deutsche Akad. der Wissensch. zu 



Berlin, Lindenberger Weg 70, 1115 BERLIN-Buch, East.Germany 

 BIER, K. t Dr.rer.nat., Prof. — Zool. Inst, der Westf. Wilhelms-Univ.. Badestr. 9. 44 MUN- 



STER/Westf., W.Germany • 



(deceased) 

 BIERNE. J. D.E.S. — Lab. de Biol. Gener.. Fac. des Sci.. B.P. 347. 51 REIMS, France 

 BIESENBEEK. F. J. — Anat.-Embryol. Inst.. Univ. of Amsterdam. Mauritskade 61. AM- 

 STERDAM. Netherlands 



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