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



Clupea spec. (Clupeidae), Citharinus spec. (Characidae, Teleostei) 

 BERTOLANI, R. Dr.Biol.Sci. — 1st. di Anat. Comp., Univ. di Modena, Via Berengario 14, 



41100 MODENA, Italy 

 a Sex ratio and karyology in parthenogenetic and amphigonic species. Maccobiotus richtersi, 



M. hufelandii, M. aureolatus (Tardigrada) 

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



A. Borelli 50, 00161 ROMA, Italy 

 a Fibrous protein structures in developing nerve fibres. Lampetra spec. (Cyclostomata), 



Gallus domesticus (Aves) 

 BERTON (PECHEUX), Mrs. F. Doct. 3eme cycle — Centre de Biol., Fond. Hersent- 



Luzarche, Univ. de Tours, 36 AZAY-LE-FERRON, France 

 a Enzymology of fetal kidney after unilateral nephrectomy. Cavia porcellas (Rodentia) 

 BERTON, J. P. Dr. — Centre de Biol., Fond. Hersent-Luzarche, Univ. de Tours, 36 AZAY- 

 LE-FERRON, France 



— Centre de Rech. Vet. et Zootechn., Lab. de Physiol, de la Reprod., (INRA), 37 



NOUZILLY, France 

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



(vascular anatomy and intra-uterine surgery). Ovis aries, Sus scrofa (Artiodactyla), 



Oryctolagus cuniculus (Lagomorpha) 

 b Chorio-allantoic cell structure. Same species as a 

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



Same species as a 

 d Development of fetal lung after tracheal ligation or nephrectomy in vivo. Same species 



as a 

 e Effects of bilateral nephrectomy (oligohydramnios, survival etc.). Same species as a 

 f Upper digestive tract as a source of amniotic fluid. Ovis aries (Artiodactyla), Oryctolagus 



cuniculus (Lagomorpha) 

 g Hydric metabolism of the fetus and corticosteroid placental transfer. Same species as f 

 h Declenchement de la mise bas. Orn's aries, Sus scrofa (Artiodactyla) 

 BETCHAKU, T. D.Sc. ~ Dept. of Biol., Osborn Memorial Labs, Yale Univ., NEW HAVEN, 



Conn. 06520, U.S.A. 

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



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



Turbellaria) 

 b Mechanism of epiboly (ultrastructure, cytochemistry, time-lapse cinematography). Fundulus 



heteroclitus (Teleostei) (with J. P. TRINKAUS) 

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



5, 16126 GENOVA, Italy 

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



Crustacea) (with N. DELLA CROCE) 

 b Growth of the embryo. Penilia avirostris (Cladocera, Crustacea) (with N. DELLA 



CROCE) 

 c Formation of resting eggs. Penilia avirostris (Cladocera, Crustacea) (with N. DELLA 



CROCE) 

 BETZ, T. W. Ph.D., Prof. — Dept. of Biol., Fac. of Sci., Carleton Univ., OTTAWA 1, Ont., 



Canada 

 a Hormonal control of the functional differentiation of the duodenum, spleen, and retina in 



the embryo. Gallus domesticus (Aves) 

 b Hormonal and dietary control of embryonic growth. Same species as a 

 BEYNON, A. D. G B.D.S. — Dept. of Oral Anat., Dental School, Northumberland Rd., 



NEWCASTLE upon Tyne NE1 8TA, England 

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

 b Histochemistry of enamel maturation. (Rodentia) 



BEZEM, J. J. Ir. ~ Zool. Lab., State Univ. of Utrecht, Teelingstr. 2, UTRECHT, Nether- 

 lands 

 a Computer simulation of embryonic development, (with Chr. P. RAVEN) 

 BHARGAVA, I. D.Sc, Prof. — Dept. of Anat., Jawaharlal Inst, of Postgrad. Med. Educ. & 



Research, PONDICHERRY-6, India 

 a Anatomy of fetal blood vessels on the chorial surface of the placenta in abnormal states of 



pregnancy. Homo sapiens (Primates) 

 b Morphometry and stereology of fetal blood vessels of the placenta. Same species as a 

 c Recessive inheritance of nondisjunction. Same species as a 

 d Cytogenetic studies in developmental defects. Same species as a 

 BIAGIONI, Mrs. M. Dott.Sci.Nat. — 1st. di Biol. Gener., Univ. di Perugia, Via del Giochetto, 



06100 PERUGIA, Italy 

 a Influenza dei sali di cobalto sull'eritropoiesi. Oryctolagus cuniculus (Lagomorpha) 

 BIEBER, S. Ph.D. — Office of the Provost, Fairleigh Dickinson Univ., 1000 River Rd., 



TEANECK, N.J. 07666, U.S.A. • 



20 



