a Cytological study of diapausing embryos, with special reference to cell ultrastructure. 



Locusta migratoria gallica (Accididae, Orthopfera) 

 b Cytological study of development of fat body, with special reference to cell ultrastructure 



and cytochemistry. Leptinotarsa decemlineata (Coleoptera) 

 LaCHANCE, L. E. Ph.D. — Metabol. and Radiat. Research Lab., State Univ. Station, 



FARGO, N.D. 58103, U.S.A. 



— temporarily: FAO/IAEA Div. of Atom. Energy in Agric, Internat. Atom. Energy 



Agency, Karntner Ring 11, A- 1010 VIENNA 1, Austria 

 LACROIX, J. C. — Lab. d'Embryol., Fac. des Sci., 9 quai St. Bernard, 75 PARIS Ve, 



France • 



LA CROIX, L. J. Ph.D., Prof. — Dept. of Plant Sci., Fac. of Agric, Univ. of Manitoba, 



WINNIPEG 19, Manitoba, Canada 

 a Factors affecting embryonic growth and differentiation. Hordeum vulgare (Graminaeae) 

 LACY, D. Dr. — Dept. of Zool. and Comp. Anat., St. Bartholomew's Med. Coll., Charter- 

 house Square, LONDON E.C.I, England 

 LAGUCHEV, S. S. Dr.med.sci. — Lab. of Histophysiol., Inst, of Exper. Biol., Acad, of 



Med. Sci. of the U.S.S.R., Baltiyskaya St. 8, MOSCOW A-315, U.S.S.R. 

 a The hormonal regulation of mitotic activity and synthesis of DNA. Mus musculus, Rattus 



norvegicus (Rodenfia) 

 LAHIRI, D. M.Sc. — Dept. of Zool.. Presidency Coll., CALCUTTA-12, W.Bengal, India 

 LAHTI, A. — Lab. of Exper. Embryol., Ill Dept. of Pathol., Univ. of Helsinki, Haartmanin- 



katu 3, HELSINKI 25, Finland 

 a Drug-induced teratogenesis in vitro. Mus musculus (Rodentia) (in collaboration with 



L. O. SAXEN and I. KAITILA) 

 LAI-FOOK, Miss J. E. I. Ph.D. — Dept. of Zool., Univ. of Toronto, TORONTO 5, Ont., 



Canada 

 a The fine structure of development. (Insecta) 

 LAIRD, C. D. Ph.D. — Dept. of Zool., Univ. of Texas at Austin, AUSTIN, Tex. 78712, 



U.S.A. 

 a Relationship between developmental patterns and intragenome nucleotide sequence homology. 



(Insecta), (Tunicata) , (Mammalia) 

 b Developmental genetics of linked genes; fractionation of RNA to correlate gene expression 



with karyotype arrangement. Drosophila melanogaster (Diptera) 

 LAKSHMANAN, K. K. Ph.D., Prof. — Dept. of Botany, Pachaiyappa's College, MADRAS- 



30, India 

 a Descriptive and experimental embryology. (Plantae) 

 b Embryogenesis. ( Angiospermae) 

 c Study of irregular embryogenesis and its possible correlation with embryo differentiation 



in tissue culture. (Angiospermae) 

 LAKSHMI, Miss M. S. Ph.D. — Chester Beatty Research Inst., Inst, of Cane. Research, 



Royal Cane. Hosp., Fulham Rd., LONDON S.W.3, England 

 a Morphogenetic effects of follicle-stimulating hormone. Callus domesticus (Aves) (in col- 

 laboration with G. V. SHERBET) 

 b Behaviour of neoplastic cells transplanted into embryos. Gallus domesticus (Aves) (in 



collaboration with G. V. SHERBET) 

 LAL, D. M. M.Sc. — Dept. of Biochem., Fac. of Sci., Allahabad Univ., ALLAHABAD-2, 



India 

 a Quantitative studies of various metabohtes in eggs, e.g. nitrogenous compounds, phos- 

 phorus compounds, reducing substances and citric acid. Philosamia ricini (Lepidoptera), 



Musca domestica. Saccophaga ruficornis (Diptera) (in collaboration with Mrs. R. PANT 



and R. VARMA) 

 b Variation in the activity of some enzymes in eggs. Philosamia ricini (Lepfidoptera), Musca 



domestica. Sarcophaga ruficornis (Diptera) (in collaboration with Mrs. R. PANT and 



R. VARMA) 

 c Quantitative studies of various metabolites during metamorphosis. Philosamia ricini (Lepi- 

 doptera), Musca nebulo, Sarcophaga ruficornis (Diptera) (in collaboration with Mrs. 



R. PANT, Miss I. D. MORRIS and R. VARMA) 

 d Quantitative studies of certain metabolites and enzymic studies on the fat body during 



larval and pupal development. Philosamia ricini (Lepidoptera) (in collaboration with Mrs. 



R. PANT, Miss I. D. MORRIS and R. VARMA) 

 LALLIER, R. A. Dr.Sc. — Station Zoologique, Fac. des Sci. de Paris, 06 VILLEFRAN- 



CHE-sur-Mer, France • 



a Biochemical aspects of embryonic determination (studies of animalizing and vegetalizing 



agents). Paracentrotus lividus (Echinoidea) 

 LAMBIOTTE, M. G. D. Dr.es Sci. — Centre de Rech. sur la Nutrit. du C.N.R.S., 9 rue 



Emile, 92 BELLEVUE, France 

 LAMONT, Miss D. M. M.A. — Dept. of Chem., Univ. Coll. London, Gower St., LONDON 



W.C.I, England 

 LAMPEL. G. Dr.rer.nat., Prof. — Zool. Inst., Naturw. Fak., Univ. Freiburg, CH-1700 



FREIBURG, Switzerland 



100 ] 



