INDEX TO JOURNAL 
VOL. XX, NEW SERIES. 
Acanthaster, spine of, 112 
Amphioxus, laminar tissue of, by 
Pouchet, 421 
Amphioxus, spinal nerves of, by 
Balfour, 90 
Angiosperms, pollen bodies of, by 
Elfving, 19 
Anthelia Turneri, 111 
Araneina, development of, by Balfour, 
167 
Azolla, root-hairs of, 115 
Bacillus of leprosy, Hansen on, 92 
Bacteria, biology of, by Waldstein, 
190 
Bacteria, Fitz on, 106 
Bacteria, Koch on, 107 
„ of mouth, Butlin on, 109 
„ Paul Bert on, 109 
Bacterium anthracis, 374 
Balfour, development of Araneina, by, 
167 
„ on larval forms, 381 
„ on spinal nerves of Amphioxus, 
90 
„ structure and homologies of 
germinal layers, by, 247 
Bennett and Murray on reformed ter- 
minology of cryptogams, 413 
Bennett on classification of crypto- 
gams, 408 
Berkleyia, 112 
Binocular with high powers, by Gibbs, 
318 
Blodgettia, Wright on. 111 
Blomfield, J. E,, on development of 
spermatozoa, 79 
Blood-corpuscles, origin of, 241 
Blood-corpuscles, origin of the red, 
by Pouchet, 331 
Bourne, A. G., on nephridia of the 
medicinal leech, 283 
Bower, on conceptacle in Fucaceae, 36 
Carpenter, Herbert, on points in 
Echinoderm morphology, 322 
Cell-layers of Coelentera, 104 
Chroococaceous alga from Leicester, 
378 
Claus, publications edited by, 110 
Coffee-leaf disease of Ceylon, Dyer 
on, 119 
Conceptacle in the Fucaceae, develop- 
ment of, by F. 0. Bower, 36 
Copepoda, anal respiration of, 244 
Cornea, nerves of, by Klein, 459 
Corpuscles, red, blood-, origin of, 
241 
