Lei 87 Linds 



LELlEVRE. A. Etude des Teratomcs. Homo. Hid. 2. M. 



(en collaboration avec A. GIROUD et A. CHATTER JEE) 

 LENDER, Th. Regeneration des yeux chez les Planaires. IV. 5. C. 

 LENNEP, Jhr E. W. van Development of the gonads and genital tract 



in whales. I- 17. M. 



LEPORI, N. G. Fertilization and Cytology in Planarians. Polycelis 



nigra (Tricladida). I. 4. C. 



LEVI, G. H. Recherches sur les transformations qui se produisent dans 



les organismes et dans les tissus cultives in vitro pendant l'accrois- 



sement. Vertebres. Ilia. 19. V. 



Recherches sur les caracteres de la structure et des proprietes bio- 



logiques dans les tissus cultives in vitro. Vertebres. Ilia. 19. V. 



LEVI— MONTALCINI, Mrs R. Origin of sympathetic and para- 

 sympathetic nervous system. Chick and Reptilians. Ilia. 9. HV. 



Control of proliferation and differentiation of the nervous system. 



Chick. Ilia. 9. L. 



(in collaboration with V. HAMBURGER) 



LEWIS, F. Th. The shape of cells in certain early embryonic tissues. 

 Chick, rabbit and man. I. lc. M. 



An embryological study of human tracheo-oesophageal fistula. 



Hid. 4. M. 



LEWIS, W. H. (data not yet received). 



LI, Miss S. C. To study the influence of the optic vesicle on the 

 development of head skeleton and accessory organs of the eye 

 ball, by extirpation of the optic vesicle at tail bud stage. Rana 

 nigromaculata. Ilia. 11. J. 



LIAO, Y. K. The reactive capacity of Rana nigromaculata to abnormal 

 inductor seems to be weaker than that of Triton. In order to find 

 out whether the ectoderm of Rana is less sensitive to inductive 

 stimuli Holtfreter's experimental method (1947) was adopted. 

 Isolated gastrular ectoderm of Rana was given a treatment with 

 acid and alkali solution of various concentration for various length 

 of duration. Thus it will be found whether the ph ranks which 

 cause neural differentiation in Triturus (or Amblystoma) and in 

 Rana ectoderm are different. Furthermore, the cause why Triturus 

 and Rana ectoderms react differently to the same ph rank will also 

 be studied. IHb. 7. J. 



LILLIE, R. S. (data not yet received). 



LINDAHL, P. E. Large scale separation of macromeres, mesomeres 

 and micromeres of the developing sea urchin egg. Ilia. 2b*. G. 



Changements of dehydrogenase system at fertilization of the sea 



urchin egg. *"b. 4. c. G. 



The biochemical mechanism of the animalization of the unfertilized 



sea urchin egg. \\\b. 4. b. G. 



LINDBERG, N. O. H. On surface reactions of the sea urchin egg 

 with special attention to phosphate-metabolism. On the dehydro- 

 genase systems of the sea urchin egg. IHb. 2a. b. G. 



LINDSTROM, T. J. J. V. Development and anatomy of the ganglia 

 and peripheral nerves of the trigeminal complex and the trigeminal 

 and facial muscles. Bdellostoma and Petromyzon (Cyclostomes) . 



II. 9. I. 



