b Development of the eye in the larva, using histological techniques (including electron 



microscope). Clupca pilchardns, Plcuronectes platessa. Solea solea (Teleosfei) 

 c Physiological experiments, especially the effect of light on larvae (spectral sensitivity, 



thresholds, brightness discrimination). (Tcteostci) 

 BLECHSCHMIDT, E. Dr.med., o.o.Prof. — Anat. Inst, der Univ., Kreuzbergring 36, GOT- 



TINGEN, Deutsche Bundesrcpublik 

 a Elektronenmikroskopie des Embryo. Homo sapiens (Primates) 



BLOCH, D. P. Ph.D., Prof. — Botany Dept., Univ. of Texas, AUSTIN, Tex. 78712, U.S.A. 

 a Mechanism of histone synthesis in sperm development. Mytilus californicus (Lamelli- 



branchia), Rehnia spinosa (Katydidae. Orthoptera) 

 b DNA synthesis and chromosome replication in the embryonic brain. Callus domesticus 



(Aves) 

 BLOCK M H. Ph.D., M.D., Prof. — Dept. of Anat.. Univ. of Colorado Med. Center, 4200 



E. 9th Ave.. DENVER, Colo. 80220, U.S.A. 

 a Development of blood-forming tissues. Didelphys uirginiana (Marsupialia) 

 b Effect of irradiation on development of blood-forming tissues. Didelphys uirginiana 



(Marsupialia) 

 c Iron metabolism of blood-forming tissues. Didelphys uirginiana (Marsupialia) 

 d Wound healing of blood-forming tissues. Didelphys uirginiana (Marsupialia) 

 e Development of antibodies and correlation with development of hemopoietic tissues. 



Didelphys uirginiana (Marsupialia) 

 f Role of thymus in development of lymphocytes in lymph nodes and spleen. Didelphys 



uirginiana (Marsupialia) 

 g Experimental embryology. 1. Development of lymphatic tissue. 2. Atrophy of myeloid 



tissue. 3. Development of immunologic competence. Didelphys uirginiana (Marsupialia) 

 BLOM. E. Dr.med.vet. — State Veter. Serum Lab., Bulowsvej 27, COPENHAGEN V. Den- 

 mark 

 a Studies on pathological conditions in the testis, epididymis and accessory sex glands. 



Bos faurus (Artiodactyla) 

 b The ultrastructure of normal and pathological sperm. Bos faurus (Artiodactyla) (in col- 

 laboration with A. BIRCH- ANDERSEN, State Serum Inst.) 

 BLONDELET, J. Dr.en Med. — Lab. d'Embryol., Fac. de Med.. Univ. de Nancy, 31 rue 



Lionnois, 54 NANCY, France 

 a Recherches sur les anomalies du caryotype. (Mammalia) 

 BLONDHEIM, Mrs. S. A. M.Sc. — Dept. of Entomol. and Venomous Animals. The Hebrew 



Univ.. JERUSALEM, Israel 

 a Environmental factors influencing development of eggs. Locusfa migratoria migrato- 



rioides, Nomadacris septemfasciata (Acrididae, Orthoptera) (in collaboration with M. P. 



PENER and A. SHULOV) 

 b Oocyte development in adult females; embryonic development. Dociostaurus curuicercus, 



D. genei (Orthoptera) 

 BLOOM, S. E. M.S. — Dept. of Poultry Sci.. Pennsylvania State Univ., 105 Weaver Bldg., 



UNIVERSITY PARK, Pa. 16802. U.S.A. 

 a Cytochemistry of binucleated red blood cells in embryos and adults. Meleagris gallopauo 



(Aues) 

 b Study of chromosomal anomalies in embryos. Callus domesticus. Meleagris gallopauo 



(Aues) 

 • BLOUNT. R. F. Ph.D.. Prof. — Dept. of Anat.. Med. Branch. Univ. of Texas, GAL- 

 VESTON. Tex., U.S.A. 

 BLUEMINK, J. G. Ph.D. — Hubrecht Lab. (Internat. Embryol. Inst.), Uppsalalaan 1, 



Universiteitscentrum "De Uithof". UTRECHT. Netherlands 

 a The subcellular structure of the blastula and the mobilization of the nutrient reserve. 



Limnaea stagnalis (Castropoda) 

 b Electron microscopical investigation of neural and endo-mesodermal competence and the 



corresponding directions of differentiation in the blastula/gastrula stage. Ambystoma 



mexicanum (Urodela) (in collaboration with P. D. NIEUWKOOP. P. Th. M. van der 



SAAG and Miss G. A. UBBELS) 

 c Subcellular aspects of functional differentiation in the parotid gland. Rattus rattus 



Rodentia) 

 BLUNT. M H. Ph.D. — Dept. of Anat., Fac. of Rural Sci., Univ. of New England, AR- 



MIDALE. N.S.W.. Australia 

 BLUZAT, R. R. — Lab. de Zool., Fac. des Scis., Univ. de Paris, 91-ORSAY, France 

 a Experimental study with ionizing radiations of development of the gonads. Leptinotarsa 



decemlineata (Chrysomelida. Coleoptera) 

 BODELET. B. — Lab. d'Embryol., Fac. de Med.. Univ. de Nancy. 31 rue Lionnois, 54 



NANCY, France 

 a Action de I'uree sur le developpement embryonnaire. (Mammalia) (en collaboration avec 



A. DOLLANDER) 

 b Action de certains agents physiques sur le developpement embryonnaire. (Amphibia; 

 Aues; Mammalia) (en collaboration avec A. DOLLANDER) 



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