CONTENTS. 
Transactions op the Society — 
PAGB 
I. — New British Freshwater Alg®. By William West, F.L.S., 
assisted by G. S. West. (Plates I. and II.) ^ 
II. — The President’s Address : The Progress and Present 
State of our Knowledge of the Aoari. By A. D. 
Michael, F.L.S. .. .. 18 
SUMMARY OF CURRENT RESEARCHES. 
ZOOLOGY.. 
A. VERTEBRATA -Embryology, Histology, and General. 
a. Embryology. 
Born, G., & W. Roux — Experimental Embryology 34 
Goronowitsch, N . — Ectodermic Origin of Skeletal Rudiments 35 
Mall, F . — Human Embryo of Second Week 35 
Aby, F. S . — Development of Hypophysis Cerebri in the Domestic Cat 35 
Haycraft, J. B . — Development of Wolffian Body in Chick and Rabbit 36 
Kukenthal, W . — Dentition of Pinnipedia 36 
Rose, 0 . — Dentition of Wombat 37 
Goronowitsch, N . — Ganglion Ridges in the Head of Birds 37 
Leche, W . — Development of Teeth in Iguana 38 
Bemmelen, J. F. van — Development of Gill-pouches and Aortic Arches in Chelonia 38 
Fick, R . — Maturation and Fertilization of Egg of Axolotl 38 
Platt, J. B . — Ontogenetic Differentiations of Ectoderm in Necturus 39 
Morgan, T. H . — Experimental Studies on Eggs of Teleosteans 40 
Koehler, R., & E. Bataillon — Growth of Blastoderm in Teleosteans 40 
Bataillon, E., & R. Koehler — Karyokinetic Phenomena in Cells of Blastoderm of 
Teleosteans 41 
Klaatsch, H . — Vertebral Column of Fishes 41 
Hoffmann, 0. K .— Origin of Vascular System in Selachii.. 42 
Herfort, K. V . — Maturation of the Ovum of the Lamprey 43 
/3. Histology. 
Reinke, F . — Minute Structure of the Cell 43 
Roux, W . — Interactions between Cell-substance and Nucleus 43 
Heidenhain, M . — Nucleus and Protoplasm .. 44 
Demoor, L . — Structure of Reticulated Tissue 44 
N usbaum, J . — Behaviour of Pigment-granules during Earyokinesis 44 
y. General. 
Wendt, G . — Chemistry of Protoplasm 45 
B. INVERTEBRATA. 
Monticelli, F. S . — Parasites of Holothurians of Naples 45 
Mollusca. 
a. Cephalopoda. 
Appellof, A . — Cephalopoda of North Sea .. 45 
Phisalix, C . — Inhibition in Cephalopoda 45 
Appellof, A . — Bilateral Hectocotylization in Eledone cirrhosa 46 
y. Gastropoda. 
Haller, B . — Neotsenioglossse .. 46 
Collinge, W. E . — Absence of Male Reproductive Organs in Two Hermaphrodite 
Molluscs 46 
Bergh, R . — Dorididss 46 
Kohler, A . — Siphonaria 47 
Plate, L. H . — The Oncidiidx 47 
Metcalf, M. M . — Embryology of Chiton 49 
Carus, J. V . — Index to the Zoologischer Anzeiger 49 
