CONTENTS. 
IX 
Macallum, A. B . — Studies on the Blood of Amphibia Part 5 
Kukenthal, W. — Origin and Evolution of Mammalian Teeth „ 
Freund, P . — Development of Itodent Teeth „ 
Giard, A . — Poecilogony „ 
Muller, J . — Gamophagy Part 6 
Rabl, G. — Theory of the Mesoderm „ 
Virchow, Hs. — Yolk-Organ of Vertebrates „ 
Ebner, V. V. — Vertebras and Protovertebras „ 
Beraneck, E . — Parietal Eye and Nerve 
Ayers, H. — Vertebrate Ear „ 
Jordan, E. O., & A. C. Eycleshymer — Cleavage of Amphibian Ovum .. „ 
Crety, C. — Vascular Papillae in Discus proligerus of Capra „ 
Fiserius, E . — Development of the Squirrel 
Nagel, W . — Development of Bladder „ 
Hamburger, O . — Development of the Pancreas „ 
Rose, C . — Dentition of Young Edentata „ 
Ballowitz, E . — Enamel Organ in Edentates „ 
Klinckowstrom, A . — Apical Spot in Embryos of Swimming Birds .. .. „ 
Winkler, F . — Origin of Pigment in Bufo „ 
Grassi, G. B., & S. Calandruccio — Leptocephalidse ,, 
Straehley, E. 0 . — Abnormal Segmentation „ 
ft. Histology. 
Butschli, O . — Structure of Protoplasm Part 1 
Ziegler, H. E., & others — Amitotic or Direct Nuclear Division „ 
Kolliker, A . — Relations of the Essential Elements ■ of the Nervous System 
to one another „ 
Bardeleben, K. — Minute Structure of Human Spermatozoa „ 
Flemming, W. — Terminology of Cell- division Part 2 
Muller, H. F . — Nucleus and Cell-substance during Mitosis „ 
Geberg, A. — The Intermediate Body in Cell-division „ 
Meves, F . — Amitotic Division in the Spermatogonia of Salamandra .. . . „ 
Frenzel, J . — Indirect Division 
Kromayer, C . — Protoplasmic Fibrils of Epithelial Cells 
Scarp atetti, J. von — Eosinophilous Cells in the Medulla of the Bones 
Flemming, W. — Cell-division Part 3 
Beneden, E. tan — The Attractive Sphere „ 
Eimer, G. H. T. — Origin and Development of Muscular Tissue Part 4 
Zander, R. — Present State of the Doctrine of Cell-division „ 
Lowit, M . — Leucoblasts and Erythroblasts „ 
Owsjannikow, Ph. — Structure of Nerve- fibres „ 
Christomanos, A. A., & E. Strossner — Muscle-spindles 
Gurber — Relation of Animal Protoplasm to Haemoglobin „ 
Chatin, J. — The Animal Cell Part 5 
Burger, O. — Attraction Spheres and Central Bodies „ 
Muller, H. F. — Relation of Nucleus to Cell-substance during Mitosis .. .. „ 
Fick, R . — Central Corpuscles Part 6 
Weiss, J. — Ilistologi/ and Micro- Chemistry of Blood 
Gehuchten, A. Van — Nerve-cells of the Sympathetic System of Mammals .. „ 
,, „ Structure of Optic Lobes of Chick „ 
Lenhossek, M. v . — Spinal Cord and Ganglia of Pristiurus-Embryos .. .. „ 
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