b Hormonal regulation of calcium metabolism and bone formation in embryos. Same species 



as a 

 c Function of chorio-allantoic membrane. Same species as a 



THIEBOLD, J. J. Dr.es Sci., Prof. — Inst, de Zool. et d'Embryol. Exp., Univ. de Stras- 

 bourg, 12 rue de l'Universite, 67 STRASBOURG, France 

 THIERY, M. M.D., Ph.D., Prof. — Dept. of Obstet. and Gynecol., Academic Hosp., Univ. 



of Gent, De Pintelaan, 9000 GENT, Belgium 

 a Intra-uterine hypoxia (determination of blood lactate/pyruvate balance and acid/base 



balance) . Homo sapiens (Primates) 

 b Longitudinal study of twins and correlation with genotype as determined by placental 



membrane morphology, placental zymograms, and extensive bloodtyping. Same species as a 

 c Histochemistry of placenta. Same species as a 

 d Enzyme histochemistry of female genital tract. (Mammalia) 

 THOMAS, C. — Lab. de Cytol. et Embryol. Molec, Univ. libre de Bruxelles, 67, rue des 



Chevaux, 1640 RHODE-ST-GENESE, Belgium 

 a Biochemistry and electron microscopy of RNA in early stages of oogenesis. Xenopus laevis 



(Anuca) 

 THOMAS, D. B. B.Sc. — Dept. of Anat., Med. School, Univ. of Birmingham, Edgbaston, 



BIRMINGHAM B 15 2TJ, England 

 a The development of the lympho-myeloid complex. Rattus spec, Mus musculus, Cavia 



cobaya (Rodentia) , Macaca mulatta, Homo sapiens (Primates) 

 b The transplantation of foetal lympho-myeloid cells. Mus musculus (Rodentia) 

 c The effects of irradiation on the developing lympho-myeloid tissues. Mus musculus 



(Rodentia) 

 THOMAS, Miss N. B.A. — Anat. Dept., Med. School, University Walk, BRISTOL BS8 



1TD, England 

 a RNA in induced and uninduced ectoderm of late gastrulae (acrylamide gel electro- 

 phoresis) . Xenopus laevis (Anura) 

 THOMAS, R. J. Ph.D. — Dept. of Anat., Creighton Univ., 657 North 27th St., OMAHA, 



Neb. 68131, U.S.A. 

 a Epiboly and cell differentiation (transmission and scanning electron microscopy, light 



microscopy) . Brachydanio rerio (Teleostei) 

 THOMMES, R. C. Ph.D., Prof. — Dept. of Biol. Sci., De Paul Univ., 1036 W. Belden Ave., 



CHICAGO, 111. 60614, U.S.A. 

 a Hormonal control of yolk sac membrane metabolism. Gallus domesticus (Aves) 

 THOMPSON, R. P. Ph.D., Prof. — Dept. of Biol. Sci., State Univ. Coll. at Brockport, 



BROCKPORT, N.Y. 14420, U.S.A. 

 a The inhibitory effects of tissue extracts on homologous organ development, particularly the 



effect of whole eye extracts and extracts of eye components on the development of the 



lens in vitro. Gallus domesticus (Aves) 

 THOMPSON, R. S. Ph.D. — Dept. of Pathol., Harbor Gen. Hosp., 1000 W. Carson St., 



TORRANCE, Calif. 90509, U.S.A. 

 a Fertilization in vitro and in vivo. (Mammalia) 

 THORIG, G E. W. Drs. — Genet. Inst., Univ. of Utrecht, Opaalweg 20, UTRECHT, 



Netherlands 

 a Isozymes and morphological variations. Drosophila melanogastet (Diptera) 

 THORNTON, C. S. Ph.D., Prof. — Dept. of Zool., Coll. of Nat. Sci., Michigan State Univ., 



EAST LANSING, Mich. 48823, U.S.A. • 



a Influence on regeneration of ingrowth of brachial nerves into aneurogenic fore limbs 



grafted orthotopically to normal hosts. Ambystoma maculatum (Ucodela) 

 b Recuperation of regeneration in nerve-dependent, formerly aneurogenic limbs after pro- 

 longed denervation. Same species as a 

 c Endocrine influence on regeneration. Ambystoma spec, Notophthalmus viridescens (Urode- 



la) , Xenopus spec. (Anura) 

 THURMOND, W. Ph.D., Prof. — Biol. Sci. Dept., Calif. State Polytechnic Coll., SAN 



LUIS OBISPO, Calif. 93401, U.S.A. 

 a Onset of melanophore-stimulating activity by the pars distalis and pars intermedia. 



Ambystoma tigrinum, Hyla regilla (Amphibia) 

 b Development of hypothalamic and pituitary control of the adrenal cortex; (extirpation, 



transplantation and histochemistry). Ambystoma tigrinum (Urodela), Xenopus laevis, Hyla 



regilla (Anura) 

 TIBA, T. Dr.Vet.Med. — Dept. of Vet. Obstet., Fac of Vet. Med., Hokkaido Univ., N 18, 



W 9, SAPPORO, 060 Japan 

 a Kinetics of spermatogenesis, especially with regard to the establishment of the wave 



pattern of the seminiferous epithelium. Mustela vison (Carnivora) 

 b Histological investigations on the diurnal cycles of spermatogenesis. 1. Spermiation. 2. 



Meiotic activity. Mus musculus (Rodentia) 

 TIBBITS, F. D. Ph.D., Prof. — Dept. of Biol., Univ. of Nevada, RENO, Nev. 89507, U.S.A. 

 TICKLE, Miss C. A. B.A. — Dept. of Biol., Yale Univ., Kline Biol. Tower, NEW HAVEN, 



Conn. 06520, U.S.A. 



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