MAY 25 189S 
CONTENTS. 
TRANSACTIONS OF THE SOCIETY. 
PAGE 
III. — On some New and Interesting Freshwater Alga:. By 
William West, F.L.S., and G. S. West, A.B.C.S., Scholar 
of St. John’s College, Cambridge. (Communicated by 
A. W. Bennett, M.A., F.R.M.S.) (Plates III. and IV.) .. 149 
IV. — On the Male of Stephanoceros Eichhorni. By F. R. Dixon- 
Nuttall, F.R.M.S. (Plate V.) 166 
SUMMARY OF CURRENT RESEARCHES. 
ZOOLOGY. 
VEBTEBRATA. 
a. Embryology. 
Gaskell, W. H . — Origin of Vertebrates 167 
Davenport, C. B . — Preliminary Catalogue of the Processes concerned in Ontogeny 168 
Saxer, Fr . — Development of Red and White Blood- Corpuscles 169 
MacMillan, Conway — Metazoan and Metaphytic Reproductive Processes . . . . 169 
Jankelowitz, A . — Development of Pancreas in Man 169 
Tims, H. W. Marett — Dentition of the Dog 169 
Fischel, A . — Development of Musculature in Birds and Mammals 170 
Will, L . — Development of Reptiles 170 
Assheton, R . — Ciliation of the Ectoderm of Amphibian Embryos 171 
Platt, J. B . — Development of the Peripheral Nervous System of Necturus .. . . 171 
„ „ Thyroid Gland and Suprapericardial Bodies in Necturus .. .. 172 
Nussbaum, M . — Mechanism of Egg-laying in Frog 173 
Dean, B . — Early Development of Amia 173 
Harrison, R. G . — Development of Teleostean Fins 174 
Schaffer, J . — Thymus Rudiments in the Lamprey 174 
Stricht, O. van der — Maturation and Fecundation of the Egg in Amphioxus .. 175 
/3. Histology. 
Kolliker, A. von — Amoeboid Movements in the Neurodendrites 175 
Gehcchten, M. A. van — Rohon’s Cells in the Spinal Cord of the Trout 175 
Weiss, G., & A. Dutil — Nerve-Endings in Striped Muscle 176 
Lee, A. Bolles — Plainer s Intercellular Body 176 
Bremer, L . — Paranuclear Corpuscle and Centrosome 176 
Stricht, O. van der — Form , Structure , and Division of the Nucleus 176 
Bambeke, Ch. van — Grouping of Pigment- Granules during Segmentation in the 
Frog 176 
Czermak, N . — Absorptive Paths in an Epithelial Cell., 176 
Andrews. R. R . — Structure of Dentine 177 
Hebner, V. v . — Optical Reaction of Connective Substances to Phenol 177 
7 . General. 
Vuillemin, P . — Assimilation and Activity 177 
Nuttall & Thierfelder — Animal Life without Bacteria '.. .. 178 
Simroth — Monochromatic Colours among Animals 178 
Hess, C . — Function of the Retina 179 
Tunicata. 
Catjllery, Maurice — Double Larva of Diplosoma 179 
Winiwarter, Hans von — Digestive Gland in Simple Ascidians 179 
Catjllery, Maurice — The Genus Sigillina 179 
Pizon, Antoine — Follicle Cells in Molgula 180 
A 
