Volume 19 Part 1 February 1968

Journal of EMBRYOLOGYAND EXPERIMENTALMORPHOLOGY

CAMBRIDGE UNIVERSITY PRESSFor the Company of Biologists Ltd

Printed in Great Britain at the University Printing House, Cambridge

Contents of Volume 19

Part 1, February 1968

SPITZ, L. M. and BURNETT, J. B. The tyrosinases of Fundulusheteroclitus at differentstages of embryonic development 1

SCHOWING, J. Influence inductrice de l'encephale embryonnaire sur le developpe-ment du crane chez le Poulet. I. Influence de l'excision des territoires nerveuxanterieurs sur le developpement cranien 9

SCHOWING, J. Influence inductrice de l'encephale embryonnaire sur le developpe-ment du crane chez le Poulet. II. Influence de l'excision de la chorde et des territoiresencephaliques moyen et posterieur sur le developpement cranien 23

VERDONK, N. H. The effect of removing the polar lobe in centrifuged eggs ofDen taliurn 33

REINBOLD, R. Role du tapetum dans la differenciation de la sclerotique chezl'embryon de poulet 43

JUBERTHIE, c. Teratologie experimentale chez un Opilion (Arachnide) 49

SCHOWING, J. Mise en evidence du role inducteur de l'encephale dans l'osteogenesedu crane embryonnaire du poulet 83

CARINCI, P. and MANZOLI-GUIDOTTI, L. Ultracentrifugal and electrophoreticanalysis of the water-soluble fraction of chick embryo yolk 95

CORSIN, J. Role de la competition osseuse dans la forme des os du toit cranien desUrodeles 103

Part 2, April 1968

WEIS, J. s. Analysis of the development of the nervous system of the zebrafish,Brachydanio rerio. I. The normal morphology and development of the spinal cordand ganglia of the zebrafish. 109

WEIS, J. s. Analysis of the development of the nervous system of the zebrafish,Brachydanio rerio. II. The effect of nerve growth factor and its antiserum on thenervous system of the zebrafish 121

JOHNSON, E. M. and SPINUZZI, R. Differentiation of alkaline phosphatase andglucose-6-phosphate dehydrogenase in rat yolk-sac 137

SALVATORELLI, G., CALLEGARINI, C, GULINATI, A. M. and GARDENGHI, G. Ob-servations sur la differenciation in vitro des cellules myeloifdes d'embryons depoulet 145

HARD Y, M. H. Glandular metaplasia of hair follicles and other responses to vitamin Aexcess in cultures of rodent skin 157

LE MOIGNE, A. Etude au microscope electronique de 1'evolution des structuresembryonnaires de Planaires apres irradiation aux rayons X 181

IKED A, A., ABBOTT, R. L. and LANGMAN, J. Muscle proteins in the chick myotomeexamined by the immunofluorescent method 193

THOMAS, R. J. Yolk distribution and utilization during early development of ateleost embryo (Brachydanio rerio) 203

Contents

LANGMAN, J. and NELSON, G. R. A radioautographic study of the development ofthe somite in the chick embryo 217

ALESCIO, T. andm MICHELE, M. Relationship of epithelial growth to mitotic rate inmouse embryonic lung developing in vitro 227

LETT, i. c. The synthetic activity of primordial germ cells in normal and irradiatedneonatal male rats 239

GRUNEBERG, H. and HUSTON, K. The development of bovine syndactylism 251

VAN ASSEL, s. and BRACHET, J. Metabolisme des acides nucleiques et des proteineset formation de cytasters dans les oeufs d'amphibiens sous l'action de l'eau lourde 261

HANOCQ-QUERTIER, J., BALTUS, E., FICQ, A. and BRACHET, J. Studies on theDNA of Xenopus laevis oocytes 273

REZNIK, M. Etude autoradiographique du muscle strie en regeneration in vivo 283

Part 3, May 1968OLENO v, J. M. and FEL, V. J A. The antigenic structure of tumour cells as material for

a study of tissue differentiation 299

AFZELIUS, B. A., NICANDER, L. and sJODEN, i. Fine structure of egg envelopes andthe activation changes of cortical alveoli in the river lamprey, Lampetra fluviatilis 311

NICANDER, L., AFZELIUS, B. A. andSJOD£N, I. Fine structure and early fertilizationchanges of the animal pole in eggs of the river lamprey, Lampetra fluviatilis 319

HINCHLIFFE, J. R. and EDE, D. A. Abnormalities in bone and cartilage development inthe talpid* mutant of the fowl 327

YOUNG, M. p., WHICHER, J. T. and POTTS, D. M. The ultrastructure of implantationin the golden hamster (Cricetus auratus) 341

GRABOWSKI, c. T. O/K/SCHROEDER, R. E. A time-lapse photographic study of chickembryos exposed to teratogenic doses of hypoxia 347

WOODLAND, H. R. flflrfGURDON, D. B. The relative rates of synthesis of DNA, sRNAand rRNA in the endodermal region and other parts of Xenopus laevis embryos 363

BARTH, L. G. flm/BARTH, L. J. The role of sodium chloride in the process of inductionby lithium chloride in cells of the Rana pipiens gastrula 387

ARMSTRONG, R. c. and ELIAS, J. J. Development of embryonic rat eyes in organ cul-ture. I. Effect of glutamine on normal and abnormal development in a chemicallydefined medium 397

ARMSTRONG, R. c. and ELIAS, J. J. Development of embryonic rat eyes in organ cul-ture. II. An in vitro approach to teratogenic mechanisms 407

MOULTON, J. M., JURAND, A. and Fox, H. A cytological study of Mauthner's cells inXenopus laevis and Rana temporaria during metamorphosis 415

SORIANO, L. Etude autoradiographique de la synthese des ADN, ARN et proteinesdans l'oesophage embryonnaire de Souris a l'aide de l'actinomycine D 433

GALLERA, J., NICOLET, G. and BAUMANN, M. Induction neurale chez les Oiseaux atravers un filtre millipore: etude au microscope optique et electronique 439