CONTENTS. 
IX 
r PAGE 
Hubrecht — Inversion of Germinal Layers in Mammals 465 
Sohultze, O.— Influence of Cold on Frogs Ova 466 
Obst, Paul — Behaviour of Nucleolus during Development of Eggs 466 
Le Dantec, Felix — Centrosome and Fertilisation 467 
Vejdovsky & Mrazek — Centrosome and Periplast 467 
Meves, F . — Structure and Development of the Spermatozoa in the Guinea-pig .. 467 
Nusbaum, J . — Development of Spermatozoa 468 
Korff, K. y . — Origin of Spermatozoa 468 
Zur Strassen, O. L . — Factors in Morphogenesis 469 
Broom, R . — Development of the Common Phalanger 469 
Goldi, Emil A . — Development of Siphonops annulatns 469 
Martin, H . — Development of Snake’s Poison-gland 469 
Cole, F. J . — Lateral Sense-organs of Fishes 469 
Studnicka, F. R . — Absence of Parietal Eye in Myxine 470 
Lavdowsky & N. Tischutkin — Relation of Yolk-elements to the Blastoderm-Cells .. 470 
Noldeke, B . — Origin of Endocardial Epithelium in Salmon 471 
Kerville, Henri Gadeau de — Sex of Hybrids 471 
Locy, W. A . — Development of Olfactory Nerve 565 
Corning, H. K . — Development of Frog’s Head 565 
Kingsbury, B. F . — Regeneration of Intestinal Epithelium in the Toad during Trans- 
formation 566 
Lundborg, H . — Share of the Ectoderm in forming Mesenchyme 566 
Rabaud, Etienne — Remarkable Abnormality in Development of Hen’s Egg .. .. 567 
Reinhard, W . — Role of the Periblast in Teleosts 567 
His, W . — Protoplasmic Phenomena in the Trout Ovum 567 
Carlier, E. Wace — Nucleolus of Hedgehog Ovum 568 
Kistiakowski, Y . — Amniotic Fluid 568 
Manner, H . — Development of Vertebral Column of Reptiles 568 
Stricht, O. yan der — Development of Bat 569 
Hill, Charles — Segments of the Vertebrate Head 569 
Maurer — Visceral Clefts of Echidna 569 
Spuler, A . — Histogenesis of the Mesenchyme 570 
Bayer, Franz — Development of Lizard’s Tongue 570 
Tonkoff, W . — Development of Spleen 570 
Swaen, A., & A. Brachet — Development of the Trout 571 
Braus, Hermann — Origin of Paired Fins in Selachians 571 
Goette, A . — Development of Carapace in Chelonia 572 
Britcher, H. W . — Albino Eggs of Amblystoma 572 
Fick, R . — Maturation Phenomena in Amphibians 573 
Schultze, O . — Bilateral Symmetry of Frogs’ Eggs 573 
Sobotta, J., & others — Corpus luteum of Mammals .. 573 
Rabl, Hans — Cell-division in the Mammalian Ovary 574 
Herfort, Karl — Fertilisation Phenomena in Lamprey 574 
Sappin-Trouffy — Spermatogenesis in Man 575 
Regaud, Ch . — Spermatogenesis in the Rat 575 
Mehnert, Ernst — Von Baer and Embryonic Variability 575 
b. Histology. 
Labbe, A . — Experimental Cytology 21 
Ascoli, M . — Formation of Blood-corpuscles in the Lamprey 21 
Bogdanoff, N . — Eosinophilous Granulations of Leucocytes 21 
Meek, A. — Post-Embryonal History of Striped Muscle-fibres 21 
Wolff, A . — Cuticular Structure 22 
Sabatier, A., & E. de Rouville — Origin of Epithelial Tissue 22 
Karpow, W . — Direct Division 22 
Kohn. A. — Inter-Renal Body of Selachians 22 
Beissner, H . — Path of the Spermatozoa from the Testis of Frogs 22 
Schwartz, ; .-Ganglion-cells of Rat’s Heart 23 
Soukhanoff, S . — Changes in the Dendrites in Intoxication 23 
Peter, K . — Ciliary Movement 151 
Lindemann, W . — Secretory Phenomena in Poison-Gland of Adder 151 
Dekhuyzen, M. C . — Red Blood-Corpuscles of Lamprey 152 
