CONTENTS 
MAY 14 1897 — — 
TRANSACTIONS OF THE SOCIETY. 
PAGE 
IV. — Presidential Address: Suggestions as to Points connected 
with the Microscope and its Accessories still needing 
Improvement. Resume of the Anatomy of Bdella. By 
A. D. Michael, F.L.S., &c 97 
SUMMARY OF CURRENT RESEARCHES. 
ZOOLOGY. 
VERTEBRATA. 
a. Embryology. 
pack 
Wetsmann. A. — Germinal Selection , 107 
Eimer, G. II. Th. — Evolution on Definite Li es 108 
Beard, J. — Problems of Vertebrate Embryology .. ., 109 
Houssay, F. — The Recapitulation Doctrine 109 
Wilson, J. T., & J. P. Hill — Development of Teeth in Perameles 110 
Assheton, R — - Experiments on Growth of Blastoderm of Chick 110 
Bauer, R. W — Proportions of Yolh, Albumen, and Shell 110 
Mitsukuri, K— Blastopore of Chelonia 110 
Grassi, G. B., & K. Knai the — Reproduction and Development of the Common Eel 111 
MTntosh, W. C. — Life- Histories of British Fishes Ill 
p. Histology. 
Wilson, E. B. — The Cell in Development and Inheritance Ill 
Giglio-Tos, E. — Blood of Lamprey 112 
Ruffini, A. — New Nerve- Sheath . •• 112 
Marchesini, R. — Centrosomes and Attraction- Spheres in Leucocytes of Newt .. .. 112 
ScuriN, H. — Minute Structure of Ganoid Sccdes 112 
<y. General. 
Ortmann, A. E — Natural Selection and Separation 113 
Meldola, R — Specific Characters 113 
Vekrill, A. E . — Nocturnal Protective Coloration 113 
Kukenthal, W. — Explorations in the Moluccas and in Borneo 113 
Tunicata. 
Todako, F. — Development of Anterior Portion of Salpa 114 
Hvitfelpt-Ivaas, H., & others — Tunicata of Norwegian North- Atlantic Expedition 1 15 
Roule, L., & M. Caullery — Tunicata of the ‘ Caudan ’ Expedition 115 
INVERTEBRATA. 
Scott, T. — Brool.’s Collection from the West Coast of Scotland 110 
Brandt, K . — Fauna of the Kaiser Wilhelm Canal 110 
Mollusca. 
a. Cephalopoda. 
Verrtll, A. E. — Gigantic Cephalopod 11G 
Willey, A. — Embryology of A autilus 110 
