L 
CONTENTS. 
TRANSACTIONS OF THE SOCIETY. 
PAGE 
I. — This Reproduction of Diatoms. By J. Newton Coombo. 
(Plates I. and II.) .. .. .. .. .. 1 
II. — Bryozoa from Madeira. By Arthur Wm. Waters. 
(Plate III.) 6 
SUMMARY OF CURRENT RESEARCHES. 
ZOOLOGY. 
VERTEBRATA. 
a. Embryology. 
Selenka, E . — Inversion of Germinal Layers in Primates 17 
Schirsian, D . — Degeneration of Villi in Large Intestine of Guinea-pig 17 
Willey, Arthur — What is “ Anlage ” ? 17 
Barfurth, D . — Artificially produced Cauda bifida 18 
Jakobsson, «T. H . — Foetal Development of the Glomus coccygeum 18 
Wijhe, Van, & Gregory, E. It . — Share of the Ectoderm in Forming the Prone phric 
Duct ' 18 
Schufeldt, R. W . — Sex in a Brood of Sparrow-ha whs 18 
His, W . — Syncytia in Development 18 
Samassa, P . — Effect of Gases on Development 19 
Benda, G . — Spiral Fibre of Mammalian Spermatozoon 19 
Hertwig, O . — Theory of Biogenesis 19 
Maurer, F. — Derivatives of the Visceral Clefts in the L iz ml 19 
Gronroos — Early Development of Salamander 20 
Symington, Johnson — The Marsupial Larynx 20 
Rawitz, B . — Spermatogenesis of Dog-Fish 20 
Cerf, L . — Heteropagous Monstrosities 20 
Haller, B . — Structure and Development of the Vertebrate Brain 21 
b. Histology. 
Labbi=>, A . — Experimented Cytology 21 
Ascoli, M . — Formation of Blood-corpuscles in the Lamprey 21 
Bogdanoff, N . — Eosinophilous Granulations of Leucocytes 21 
Meek, A. — Post-Embryonal History of Striped Mtiscle-fibres 21 
Wolff, A. — Cuticu'ar Structure 22 
Sabatier, A., & E. de Rouville — Origin of Epithelial Tissue 22 
Karpow, W . — Direct Division 22 
Kohn, A. — Inter-Renal Body of Selachians 22 
Beissner, H . — Path of the Spermatozoa from the Testis of Frogs 22 
Schwartz, S. — Ganglion-cells of Rat's Heart 23 
Soukhanoff, S . — Changes in the Dendrites in Intoxication 23 
c. General. 
Andres, Angelo — Mechanical Explanation of Life 23 
Kohlbrugge, J. H. F . — Atavism 23 
Rei|jmayr, A . — Inheritance of Immunity 21 
Garstang, W. — Variations and Races of the Maclcerel 21 
Couvreur, E . — Respiration in Cyclostomes 21 
Packard, A. S . — Retrospect 21 
Vernon, H. M . — Evolution of the Warm-blooded Animal 25 
Finn, Frank — Whip-Snalces 20 
Earl, Alfred — Living Organism 2G 
1899 A 
