LEESON, C. R.; M.D., Prof. - Dept. of Anat., Coll. of Med., Univ. of Missouri, COLUMBIA, MO 



65201, USA 

 LEFFINGWELL, T. P.; Ph.D. - Cell Res. Inst., Biol. Labs. 220, Univ. of Texas, AUSTIN, TX 78712, 



USA 

 LEGNAME, A. H.; Dr. Biochem., Prof. - Inst, de Biol., Univ. Nac dc Tucuman, Chacabuco 461, 



4000 S.M. de TUCUMAN, Argentina 

 a Glycolysis and tricarboxylic acid cycle during early development: regulatory mechanisms. Buto 



arenarum (Anura) 

 b Oocyte maturation: metabolism as an expression of cytoplasmic maturation. Same species as a 

 LEHMANN, Ms. R. - Dept. of Zool., Univ. of Washington, SEATTLE, WA 98195, USA 

 LEIGHTON, J.; M.D., Prof. - Dept. of Pathol., Med. Coll. of Pennsylvania, 3300 Henry Ave., 



PHILADELPHIA, PA 19129, USA 



no work on developmental biology in progress 

 LEMANSKI, L. F.; Ph.D. - Dept. of Anat., Univ. of Wisconsin, MADISON, WI 53706, USA 

 a Myofibrillogencsis and heart inductive processes in normal and cardiac non-function (gene c) 



animals (tissue and organ culture), biochemistry, immunofluorescence, immuno-EM). 



Ambystoma mexicanum (Urodela) 

 b In vivo and in vitro heart development in normal and cardiomyopathic animals, part. 



myofibrillogenesis and regulatory processes in differentiating myoblasts (biochemistry, 



immunofluorescence, immuno-EM). Mesocricetus auratus (Rodentia) 

 LENHOFF, H. M.; Ph.D., Prof. - Dept. of Devi, and Cell Biol., Univ. of Calif., IRVINE, CA 92717, 



USA 

 a Chemistry, biosynthesis, and topography of mesoglea. Hydra littoralis, H. pseudoligactis 



(Hydrozoa) 

 b Movement and differentiation of interstitial cell. Hydra littoralis (Hydrozoa) 

 c Development of mutants. Hydra viridis (Hydrozoa) 



d Control of pedal laceration. Undescribed spec. (Actinozoa) r* • d /-. 



LEOPOLD R A.; Ph.D. - Metab. and Radiat. Res. Lab., Agric. Res. Serv., US Dept. ot Agnc, P.O. 



Box 5674, State Univ. Station, FARGO, ND 58102, USA 

 a Reproductive physiology; development. Musca domestica (Diptera), Melanoplus differentialis 



(Orthoptera) 

 b Constructing interspecific hybrids, using mosaics produced by exchanging pole cells between 



embryos. Musca domestica, M. autumnalis (Diptera) 

 LESH-LAURIE, Ms. G. E.; Ph.D. - Dept. of Biol., Cleveland State Univ., CLEVELAND, OH 441 15, 



USA 

 a Purification of neurotrophic substance(s) involved in interstitial cell ditferentiation. Hydra spec, 



Podocoryne spec, Hydractinia spec, Pennaria spec, Aurelia spec. (Hydrozoa) 

 b Control of differentiated state of interstitial cells. Same species as a 

 c Role of mesoglea in morphogenesis. Same species as a 



LESSEPS, R. J. (S. J.); Ph.D. - Dept. of Biol. Sci., Loyola Univ., NEW ORLEANS, LA 70118, USA 

 a Sorting-out experiments to test hypotheses concerning morphogenetic movements (embryonic 



heart, neural retina, pigmented retina). Chicken 

 b Cell movements in early development. Nothobranchius korthausae (Cyprinodontoidea, Teleostei) 

 LEVENSON G E ■ Ph.D., D.D.S. - Dept. of Histol., Embryol. and Genet., Sch. of Dent. Med., Univ. 



of Pennsylvania, 4001 Spruce St., PHILADELPHIA, PA 19174, USA 

 a Comparison of three types of embryonic cartilage when grown as monolayer cultures. Chicken 

 b Effect of ascorbic acid in medium on growth and differentiation of embryonic cartilage in 



monolayer culture. Chicken 

 c Effects of ascorbic acid on growth, differentiation and matrix (collagen) synthesis in tooth germs 



in vitro. Mouse r. • ^ 



LEVINE A J • Ph D Prof. - Dept. of Microbiol., Sch. of Basic Health Sci., Health Sci. Ctr., Sate 



Univ. of New York, STONY BROOK, NY 1 1794, USA 

 a Differentiation of embryonal carcinoma cells in culture. Mouse 

 LEVY, Ms. S.; Ph.D. - Dept. of Med., Stanford Med. School, Vet. Adm. Hosp., PALO ALTO, CA 



94305, USA 

 a Expression of histone genes in embryonic development and during cell cycle. Strongylocentrotus 



purpuratus, Lytechinus pictus (Echinoidea) 

 LEWIS, C. A.; Ph.D. - A - 002 Marine Biol. Res. Div., Scripps Inst, of Oceanogr., Univ. of California, 



San Diego, LA JOLLA, CA 92093, USA 

 a Growth, seasonal reproductive activity and larval development: mariculture; settlement and 



distribution. (Cirripedia, Crustacea) 

 b Gamete interactions (EM, gel electrophoresis, biochemistry). Haliotis rufescens (Gastropoda) 

 LHOTKA, J. F., Jr.; M.D., Ph.D., Prof. - Dept. of Anat. Sci., Univ. of Oklahoma Health Sci. Ctr., 



P.O.Box 26901, OKLAHOMA-City, OK 73190, USA 

 a Localisation of calcium and iron in the developing embryo. Chicken, Pig, Man 

 b Histochemical localisations of polysaccharides in embryo and early fetus, with emphasis on 



vascular system. Man 

 c Coat colour and neoplastic degeneration in advanced aging. Mouse 

 LIANG, H. M.; Ph.D., Prof. - Dept. of Biomorphics, Natl. Defence Med. Ctr., P.O.Box 8244, TAIPEI 



loV, Taiwan, Rep. of China 

 a Ultrastructure of sex transformation in larvae. Rana spec. (Anura) 

 LILIEN, J. E.; Ph.D., Prof. - Dept. of Zool., Univ. of Wisconsin, 1117 W. Johnson St., MADISON, 



WI 53706, USA 

 a Morphogenesis, ceU-cell interactions, cell surface in the embryo. Chicken 



51 



