CONTENTS. 
IX 
„ PAGE 
Salzer, Hans — Hypophysis of Mammals 286 
Rabl, C . — Development and Structure of the Lens .. 286 
Kopsch, Fr . — Development of External Form of Trout Embryo 286 
McIntosh, W. C. — Fost-Larval Fierasfer 287 
Sewertzoff, A. N . — Metamerism of Head in Torpedo 287 
Rollinat, R . — Copulation in Ophidians 287 
Le Dantec, Felix — Sex and Molecular Dissymmetry 287 
Fere, Ch. — Variations in Weight of Hens' Eggs 287 
Peter, Karl — Convergence in Development 287 
Garbowski, T . — Theory of the Mesoderm 401 
Virchow, Hs. — Yolk-Sac of Scyllium 404 
Neal, H. V . — Morphology of Vertebrate Head .. .. 405 
Hacker, v . — Differentiation of Sex-Cells 405 
Guaita, Georg von — Crosses between Different Breeds of House-Mouse 405 
Rath, Otto vom — Telegony and Maternal Impressions 406 
Babor, J. Fl . — Hermaphroditism 406 
Herrera, A. L . — Studies in Consanguinity 406 
Gaupp, E . — Development of Lizard’s Skull 406 
Fischel, A . — Regeneration of the Lens 406 
Kopsch — Neurenteric Canal 407 
Beard, J . — Span of Gestation and Cause of Birth 514 
Eimer, G. H. Th . — Orthogenesis 515 
Iwanzoff, N . — Physiological Import of Maturation 516 
Carnoy, J. B., & H. Lebrun — Germinal Vesicle and Polar Bodies in Urodela .. 516 
Assheton, R . — Segmentation of Ovum in Sheep 517 
Bardeleben, K. von — Spermatogenesis in Man 517 
Friedmann, F . — Rudimentary Ova in Frog's Testis 517 
Perez, J . — Effect of Mechanical Stimulus on Unfertilised Ova of Silkmoth . . .. 517 
Raspail, Xavier— Wind-Eggs 518 
Verdun, P . — Fourth Visceral Cleft and Lateral Thyroid in Cat 518 
Sprenger, Hs . — Development of Hedgehog’s Spines 518 
Prenant, A . — Organ in Embryo Reptiles like a Hypocliorda 518 
Gronroos, Hj . — Gastrula and Archenteron of Salamander 518 
Winslow, G. M . — Cliondrocranium in Ichthyopsida 518 
Jablonowski, J . — Early Stages in the Development of Salmonidse 519 
Ussow, S. A . — Development of Teleostean Scales 519 
Hahmar, J. A . — Development of Csecum in Amphioxus 519 
Pearson, K . — Law of Ancestral Heredity 519 
Kohlwey, H . — Formation of Breeds and Species 520 
Cohn, L . — Determination of Sex 615 
Rath, Otto vom — Telegony 615 
Maurer, F . — Respiration in Amphibia during Metamorphosis 616 
Smith, A. C . — Multiple Canals in Spinal Cord of a Chick Embryo 616 
Dendy, Arthur — Development of Sphenodon 616 
Brynes, E. F . — Regeneration in Frog-Embryos 616 
5, Histology. 
Duval, M. — Pre'cis of Histology 62 
Ballowitz, E. — Sickle-shaped Nuclei and Giant-Spheres in Resting Epithelial Cells 62 
Kolliker, A. von — Energids of Plants and Animals 62 
Flemming, W . — Number of Chromosomes in Somatic Cells of Man 62 
Retterer, Ed . — Kpithelium and Reticular Tissue 63 
MacCallum, J. B . — Heart Muscle-Cells . • 63 
Garnier, Charles — Appearance of Intercellular Bridges between Smooth Muscle- 
Cells 63 
Wolff, G . — Hypophysis in Health and Disease 63 
Apathy, St . — Conducting Element in Nervous Tissue 64 
Pugnat, Charles-Amedee — Spinal Ganglion- Cells of Reptiles 64 
Smirnow, A. E . — Molecular Layer of Cerebellum 64 
Kapelkin, W . — Minute Structure of the Lamprey's Skin 64 
Mayer, O . — Ciliated Epithelium in Amphibian Larvse 65 
