CONTENTS. 
IX 
Hoffmann, C. K . — Development of Urino-genital System in Birds . . 
Mitsukuri, K . — Gastrulation in Chelonia 
Olt, Ad. — Life-history of Rhodeus amarus 
Beneden, Ch. Van — Elimination of Nuclear Elements in Ovarian Ova of 
Scorpsena scrofa 
Hertwig, O., & others — Experimental Embryology 
Emery, C . — Heredity and the Theory of Descent 
Knauthe, K . — Transmission of Acquired Characters 
Wilckens, M . — Inheritance of Acquired Characters 
Wagner, F. yon — Ontogeny and Regeneration 
Lavocat — The Origin of Species 
Waldeyer — Theories of Heredity 
Ryder, J. A . — Energy as a Factor in Organic Evolution 
„ „ Mechanical Genesis of Form of Fowl’s Egg 
Seitz — Value of Mimetic Covering in the Struggle for Existence 
Davidoff, M. von — “ Urmund and Spina bifida ” 
Platt, J. B . — Ectodermic Origin of the Cartilages of the Head 
Keibel, F . — Development of Nose and Upper Lip 
Moore, J. E. S . — Mammalian Spermatogenesis 
Pjatnizky, J. J . — Human Tails 
Duval, M . — Placenta of Carnivora 
Keibel, F . — Development of Bladder and Allantois in Guinea-pig .. 
Rose, C . — Development of Teeth in Chamaeleon 
Saint-Remy. G . — Development of Pancreas in Ophidians 
Bambeke, C. Van — Gastrular Raphe of Triton alpestris 
Barfurth — Regeneration of Germinal Layers in Amphibia 
Nusbaum, J . — Development of Hepatic Vessels and Blood-corpuscles in 
Anura 
Nickerson, W. S . — Development of Scales of Lepidosteus 
McClure, C. F. W . — Segmentation in Petromyzon marinus 
Valenti, G . — Development of Nervous Tissue 
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Part 6 
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B. Histolog-y. 
Flemming, W. — Invisibility of Living Nuclear Structures Part 1 
Vas, F. — Chromatin of Sympathetic Ganglia „ 
Dekhuysen, M. C. — Blood of Amphibia ,, 
Gehuchten, A. Van — Cerebro-Spinal Ganglia „ 
Notthafft, A. — Degeneration and Regeneration of Injured Peripheral 
Nerves „ 
Gehuchten, A. Van — Free Intra-epidermic Nerve-endings „ 
Golgi’s Method and the Distribution of Nerve-fibres „ 
Moore, J. E. S. — Relationships and Role of Archoplasm during Mitosis in 
the Larval Salamander Part 2 
Kanthack, A. A., & W. B. Hardy — Wandering ( Migrating ) Cells of the 
Frog „ 
Spuler, A. — Alleged Intracellular Origin of Red Blood-corpuscles .. .. „ 
Hansemann, D. — Centrosomata and Attraction Spheres in Resting Cells .. „ 
Altmann — Granula-Theory „ 
Dallinger, W. H. — Biitschli’s Experiments on Artificial Protoplasm .. „ 
Strasburger, Ft.— Cell-division Part 3 
Butschli, O. — Imitation of Karyohinetic Figures „ 
Dogiel, A. S. — Structure of Nerve-Cells and their Processes „ 
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