a Origin and physiology of roots regenerated by hypocotyl slices from dormant, mature 



embryos. Pinus lambertiana (Gymnospermae) 

 b The cause of enhancement of auxin transport by pretreatment of embryos with auxin. 



Pinus lambertiana (Gymnospermae) 

 GREGG, J. H. Ph.D., Prof. — Dept. of Zool., Univ. of Florida, GAINESVILLE, Fla. 32601, 



U.S.A. • 



a Developmental physiology (Acrasiales) 

 GREGG, J. R. Ph.D., Prof. -*, Dept. of Zool., Duke Univ., DURHAM, N.C. 27706, U.S.A. • 



(no embryological work in progress) 

 GREMIGNI, V. Dr.Biol.Sci. — 1st. di Zool. e Anat. Comp. dell'Univ., Via A. Volta 4, 



56100 PISA, Italy 

 a Cytochemistry and electron microscopy of oogenesis. (Tricladidea, Turbellaria) 

 GRIFFOND (ROGNON), Mrs. B. Lic.es Sci. — Lab. de Zool., Fac. des Sci., Place Mare- 



chal Leclerc, 25 BESANgON, France 

 a Determinisme de la sexualite. Paludina vivipara (Pcosobranchia, Gastropoda) (avec L. 



GOMOT) 

 GRIGNON, G. Prof. — Lab. de Biol. Med., Univ. de Nancy I, 30 rue Lionnois, 54 NANCY, 



France 

 a Ultrastructure du developpement du complexe hypothalamo-hypophysaire et de la glande 



surrenale. Gallus domesticus (Aves) 

 GRILLO, H. C. M.D., Prof. — Dept. of Surgery, Massachusetts Gen. Hosp., BOSTON, 



Mass. 02114, U.S.A. 

 a Biological characteristics and function of native tissue collagenases in wounds; partial 



purification and characterization. (Mammalia) 

 b Tissue resorption in healing wounds. Oryctolagus cuniculus (Lagomorpha) 

 GRILLO, T. A. I. Prof. — Dept. of Anat., Univ. of Ibadan, IBADAN, Nigeria • 



GRIM, M. MUDr. — Dept. of Anat., Charles Univ., U nemocnice 3, PRAHA 2, Czecho- 

 slovakia 

 a Prenatal development of muscles. Gallus domesticus (Aves), Homo sapiens (Primates) 

 GROBSTEIN, C. Ph.D. — Dept. of Biol., Univ. of California, San Diego, P.O.Box 109, LA 



JOLLA, Calif. 92037, U.S.A. • 



GRODZIfiSKI, Z. D.Sc, Prof.(Emer.) — Dept. of Comp. Anat., Jagellonian Univ., ul. 



Krupnicza 50, KRAKOW, Poland • 



a Yolk from the ripe egg; influence of hypo- and hypertonic NaCl solutions; supravital basic 



and acidic dyes; electron microscopy. Myxine spec. (Cyclostomata) 

 b Structure of yolk platelets. Polypterus spec. (Chondrostei), Hydrolagus spec. (Holoceph- 



ali) , Latimeria spec. (Crossopterygii) 

 c Thermal tolerance of larvae. Macropodus opercularis, Salmo tvutta, Perca fluviatilis 



(Teleostei) 

 GROENENDIJK (HUIJBERS), Mrs. M. M. M.D., D.Sc. — Dept. of Med. Anat. and 



Embryol., State Univ. of Utrecht, Janskerkhof 3A, UTRECHT, Netherlands 

 a Interrelation of embryonic gonads, thyroids, pituitaries and oviducts; mechanism of 



oviduct regression in male and female, and of right ovary regression in female (hemicastra- 



tion, castration, implantation of endocrine glands, administration of gonadal and other 



hormones) . Gallus domesticus (Aves) 

 b Hormonal dependency of down feather pigmentation (castration, pituitary implantation, 



modification of thyroid hormone levels, administration of drugs (a -MSH etc.)). Same 



species as a 

 GROS, D. Dr.3e Cycle — Lab. de Physiol. Anim., Univ. de Poitiers, 40 av. du Recteur 



Pineau, 86 POITIERS, France 

 a Electron microscopy and electrophysiology of the heart before and after metamorphosis. 



Ambystoma tigrinum (Urodela) 

 GROSCH, D. S. Ph.D. — Dept. of Genet., North Carolina State Univ., Gardner Hall, 



RALEIGH, N.C. 27607, U.S.A. 

 a Egg production and survival of embryos after mother has ingested, or been injected with, 



chemical agents; without and with irradiation. Habrobracon spec. (Hymenoptera) 

 b The effects of space flight on reproductive performance (weightlessness, dynamic factors 



of launching and recovery, and radiation effects). (Insecta) 

 GROSS, J. M.D., Prof. — Developm. Biol. Lab., Massachusetts Gen. Hosp., BOSTON, 



Mass. 02114, U.S.A. • 



GROSS, P. R. — Dept. of Biol., Massachusetts Inst, of Technol., CAMBRIDGE, Mass. 02139, 



U.S.A. • 



GROTE, W. Dr.med. — Inst, fur Humangenet. und Anthropol., Univ. Diisseldorf, Ulenberg- 



str. 127, 4000 DUSSELDORF, W.Germany 

 GRUFFYDD, LI. D. Ph.D. — Marine Sci. Labs., Univ. Coll. of N.Wales, MENAI BRIDGE, 



Anglesey, Wales, U.K. 

 a Developmental biology. (Lamellibranchia) 

 GRUNEBERG, H. Ph.D., M.D., D.Sc, F.R.S., Prof. — Dept. of Anim. Genet., Univ. Coll. 



London, Wolfson House, 4 Stephenson Way, LONDON NW1 2HE, England • 



a Developmental genetics. Mus musculus (Rodentia) 



70 



