CONTENTS. 
Transactions of the Society — 
PAGE 
IY. — Monochromatic Violet. By J. William Gifford, F.R.M.S. 
(Plate I.) 145 
V. — On the Variations observed in large Masses of Turbi- 
naria. By F. Jeffrey Bell, M.A., Sec. R.M.S. (Plates 
II. and III.) 148 
SUMMARY OF CURRENT RESEARCHES. 
ZOOLOGY. 
VERTEBRATA : — Embryology, Histology, and General. 
a. Embryology. 
Bourne, G. C . — Epigenesis or Evolution 150 
Hubrecht, A. W. W . — Blastocysts of Mammalia 150 
Assheton, R . — Attachment of Mammalian Embryo to the Walls of the Uterus .. 151 
Nordmann, F . — Formation of the Decidua 152 
Assheton, R . — Early Stages of the Development of the Rabbit 152 
„ „ Primitive Streak of the Rabbit 152 
„ ., Fusion of Epiblastic Layers in Rabbit and Frog 153 
Guldberg, G., & F. Nansen — Development and Structure of the Whale 153 
Engel, C. S . — Blood of Embryo Chick 154 
Assheton, R . — Growth in Length of the Frog Embryo 154 
Jourdain, S . — Transformation of the Aortic Arches in the Frog 155 
MTntosh, W. C . — Ova of British Fishes 155 
Lebedinsky, J . — Larval Excretory System of Calamoichthys 155 
Sabatier, A . — Spermatogenesis of Selachians 156 
Carlsson, Albertina — Development of Teeth in Teleostei 156 
Holbrook, A. T . — Endocardium of Bony Fishes 156 
Virchow, H. — Yolk-syncytium and Blastoderm-rim in Salmonidas 157 
Sobotta — Formation of Mesoderm, Heart , Blood-vessels , and Blood in Salmonidas . . 157 
Ziegenhagen — Vascular System of Salmonid Embryos 158 
Kopsch, Fr . — External Views of Developing Trout-egg 158 
Tornier — A Zoophyletic Law of Development 158 
Schultze, O . — Experimental Embryology 159 
/3. Histology. 
Schloter, G. — Cell-structure 159 
Muscatello, G . — Physiological Meaning of the Different Forms of Endothelial Cells 160 
Eismond, J. — Attraction-spheres and Centrosomes 160 
Dejerine, J . — Anatomy of the Nerve-centres 160 
Rouville, E. de — Genesis of Intestinal Epithelium 160 
y. General. 
Maas, O . — Temperature as a Factor in the Distribution of Marine Animals .. .. 161 
Forel, F. A . — Fauna of Lakes 161 
Scharff, R. F . — Origin of Irish Land and Freshwater Fauna 161 
Weismann, A . — Effect of External Influences on Development 162 
Britton, N. L . — Conception of Species 162 
Tunicata. 
Ritter, W. E . — Budding in Goodsiria and Peropliora 162 
Hjort, J., & F. Bonnevie — Budding of Distaplia magnilarva 163 
Rankin, J . — Supposed Vertebration of the Tail in Appendicularia 163 
Korotneff, A . — Development of Salpa democratica 163 
Salensky, W . — Development of Diplosoma Listeri 164 
Hjort, J . — Theory of Ascidian Buds 164 
IN VERTEBRATA. 
Loeb, J . — Physiological Morphology 165 
KnolL, Ph . — Cardiac Activity of Invertebrates 165 
„ „ Blood-corpuscles of Invertebrates 166 
