CONTENTS 
CONTENTS OF No. LXXVII, N.S., JANUARY, 1880. 
MEMOIRS: 
PAGE 
On the Embryo-sac and Development of Gymnadenia compsea. 
By H. Marshall Ward, Scholar of Christ’s College, Cam- 
bridge. (With Plates I, II, and III) . . . I 
Studies on the Pollen-Bodies of the Angiosperms. By Fred. 
Elfving, of Helsingfors. (With Plate IV) . . .19 
On the Development of the Conceptacle in the Fucaceee. By 
F. 0. Bower, B.A., Trinity College, Cambridge. (With 
Plate V) 36 
On Certain Effects of Starvation on Vegetable and Animal 
Tissues. By D. D. Cunningham, M.B., Surgeon, Indian 
Medical Service, Fellow of the Calcutta University . . 50 
On the Development of the Spermatozoa. Part I. Lumlricus. 
By J. E. Bloomfield, B.A. Oxon. (With Plates VI and VII) 79 
On the Spinal Nerves of Araphioxus. By F. M. Balfour, M.A., 
F.R.S., Fellow of Trinity College, Cambridge . . .90 
The Bacillus of Leprosy. By G. Armaner Hansen. (With 
Plate VIII) 92 
NOTES AND MEMORANDA : 
Development of Planorbis ..... 103 
Origin of Sperm and Ova from the Cell-layers of Coelentera . 104 
Muscular Fibre (Mesoderm) derived from Endoderm . . 106 
Recent Researches on Bacteria ..... 106 
Publications of the Zoological Institute of the University of 
Vienna ....... 110 
New Biological Journal ...... 110 
PROCEEDINGS OP SOCIETIES : 
Dublin Microscopical Club , . , , .111 
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