INDEX TO YOL. 54, 
NEW SERIES. 
Amphioxus, excretory organs of, by 
Goodrich, 185 
„ formation of the layers in, by 
E. W. MacBride, F.R.S., 279 
Aranese, development and origin of 
the respiratory organs in, by W. 
F. Purcell, Ph.D., 1 
,, phylogeny of the tracheae in, by 
W. F. Purcell, Ph.D., 519 
Arnold on digestive processes in 
Planariae, 207 
Assheton, R. J., a criticism of 
Hubrecht’s paper on early onto- 
genetic phenomena in mammals, 
221 
„ on Tropidonotus and the Archen- 
teric knot of Ornithorhynchus, 
631 
Blood-corpuscles of Lamellibranchs, 
by Drew, 605 
Calothrix fusca, cytology of, by 
Sw ellengrebel, 623 
Cyanophyceae, Swellengrebel, on 
Calothrix, a representative of that 
group, 623 
Dendrosoma radians, bySydney 
J. Hickson, D.Sc., 141 
Digestive processes, intra-cellular 
and general, in Planariae, by 
I Arnold, 207 
Dinophilus, nephridia of, by Good- 
rich, 1 .1 
I Drew, G. H., on the physiology of 
Lamellibranch blood-corpuscles, 
605 
Echiurus, nephridia of, by Good- 
rich, 111 
Goodrich, E. S., on the structure of 
the excretory organs of Amphi- 
j oxus, 185 
I „ on the nephridia of Dinophilus 
I and of the larvae of Polygordius, 
Echiurus, and Phoronis, 111 
j Gregarinae, Margaret Robinson on 
I Kalpidorhynchus, a representative 
of that grouj), 565 
I Haswell, Professor, on the develop- 
I ment of the Temnocephaleae, 415 
j Hewitt, Gordon, on the Bionomics, 
Allies, Parasites and relations to 
' disease, of Musca domestica, 
347 
I Hickson, S. J., on Dendrosoma 
radians, 141 
