a Researches on the sequence of morphs in cyclic reproduction. Pemphigus spirofhecae 



(Homoptera) 

 LANDAUER. W. Ph.D.. Prof. — Dept. of Anim. Genet.. Univ. Coll. London. Wolfson 



House. 4 Stephenson Way. LONDON N.W.I. England 

 — private address: 16 Highgate Ave.. LONDON N.6. England • 



a A causal analysis of teratogenic action of insulin and other chemical compounds on devel- 

 oping embryos. Gallus domesticus (Aves) 

 b The nature and significance of phenocopies. Gallus domesticus (Aves) 

 LANDESMAN. R. Ph.D. — Dept. of Zool.. Univ. of Vermont. BURLINGTON. Vt. 



05401. U.S.A. 

 a Control of transcription and translation during embryogenesis. Xenopus laevis (Anuca) 

 h Examination of regional differentiation by analysis of protein synthesis. Xenopus laevis 



(Anura), Amby stoma mexicanum (Urodela) 

 LANDSTROM. U. — Dept. of Zoophysiol.. Univ. of Umea. S 901 87 UMEA. Sweden 

 a Oxygen uptake during embryogenesis. Tubifex spp. (Oligochaeta) (in collaboration with 



S. L0VTRUP) 

 LANGMAN, J. M.D.. Ph.D.. Prof. — Dept. of Anat., Med. School. Univ. of Virginia, 



CHARLOTTESVILLE. Va. 22901. U.S.A. • 



a Autoradiographic and immunological analysis of muscle development in vivo. Gallus 



domesticus (Aves) 

 h Autoradiographic and immunological analysis of brain development under normal and 



abnormal conditions. Gallus domesticus (Aves), (Rodentia) 

 LANOT. R. Lic.es Sci. — Lab. de Zool., Fac. des Sci. de Nancy. 30 rue Ste Catherine. 



54 NANCY. France 

 a Malformations axiales: analyse causale de Taction teratogene du bleu trypan et de la 



RNA-se. Gallus gallus (Aves) 

 LANZAVECCHIA. G. Dr.. Prof. — 1st. di Zool.. Univ. di Milano, Via Celoria 10, MI- 



LANO, Italy 

 LARKIN, L. H. Ph.D. — Dept. of Anat., Univ. of Colorado Med. School, 4200 E. 9th Ave., 



DENVER, Colo. 80220, U.S.A. 

 LARRIVEE. D. H. M.A. — Dept. of Zool.. Univ. of British Columbia. VANCOUVER 8, 



B.C., Canada 

 a Molecular and cellular aspects of arm formation in larvae. Strong ylocentrotus droebachien- 



sis, S. purpuratus. S. franciscanus (Echinoidea) (in collaboration with C. V. FINNEGAN) 

 LARSON, P. F. M.D. — Muscular Dystrophy Res. Labs., Newcastle Gen. Hosp., NEW- 

 CASTLE upon Tyne NE4 6BE, England 

 a Electron microscope studies of embryonic muscle and of myoblasts grown in tissue culture 



to determine the temporal and spacial relationships between the polyribosomes and the 



developing myofilaments. Gallus domesticus (Aves), Mus musculus, Rattus norvegicus 



(Rodentia), Homo sapiens (Primates) 

 LARSSON. K. S. Odont. D.. Prof. — Lab. of Teratol.. Karolinska Inst.. S-104 01 STOCK- 

 HOLM 60. Sweden 

 a Chemical interaction with mucopolysaccharide synthesis during embryogenesis and fetal 



development. Mus musculus, Rattus norvegicus (Rodentia) 

 h Experimental developmental morphology: studies on facial formation. Mus musculus, 



Rattus norvegicus (Rodentia) 

 LASH, J. W. — Dept. of Anat., School of Med., Univ. of Pennsylvania, PHILADELPHIA, 



Pa. 19104, U.S.A. • 



LASHER, R. S. Ph.D. — Dept. of Biol., Univ. of Calif. San Diego, LA JOLLA, Calif. 



92037, U.S.A. 

 LA SPINA. Miss R. D.Sc. — 1st. di Zool., Univ. di Palermo, Via Archirafi 18. 90123 



PALERMO. Italy 

 a Fine structure of unfertilized eggs and egg fragments. Ascidia malaca (Ascidiae) 

 b The analysis of the colour pattern. Discoglossus pictus (Anura) 



LASSAU. J. P. — Lab. d'Anat., Fac. de Med., 45 rue des Sts. Peres, 75 PARIS Vie, France 

 a Croissance de la vulve. Homo sapiens (Primates) 

 LATSHAW. W. K. Ph.D., Prof. — W.C.U.M., Univ. of Saskatchewan, SASKATOON, 



Sask.. Canada 

 a Closure mechanisms of optic fissure. (Mammalia) 



LAUFER, H. Ph.D.. Prof. — Div. of Biol. Sci.. Life Sciences Bldg U-42, Univ. of Connec- 

 ticut, STORRS. Conn. 06268. U.S.A. • 

 LAUGE, Miss G. Dr.es Sci. — Lab. d'Entomol. et de Zool.. Fac. des Sci., Univ. de Paris. 



91 ORSAY. France 

 a Experimental study of determination and differentiation of genital apparatus, triploid 



intersexes. Drosophila melanogaster (Diptera) 

 LAVALLE. D. B.Sc. — Dept. de Biol. Geral, Inst, de Cienc. Biol, da U.F.M.G., Rua 



Carangola 288 - 4°andar. C.P. 253. BELO HORIZONTE, M.G.. Brazil 

 a Quantitative relations between DNA content and nuclear volume in relation with the 



germinal line (spermatogenesis). Bu[o paracnemis (Anura) 



101 



