INDEX TO VOL. 51, 



NEW SERIES. 



iE nig 111 a senigniatica, by G. C. 

 Bourne, 253 



Anatomy of Noloryctes, by G. Sweet, 

 325 



Anomiacea, structure of J]]nigma, by 

 G. C. Bourne, 253 



Antedon and Syuapta, spicules of, by 

 W. Woodland, 31 



Ascidiaus, spicules of, by W. Wood- 

 land, 45 



Auricularia, wheel-spicules of, by W. 

 Woodland, 483 



Babesia bovis (see Piroplasma 



bigeminum, 297) 

 Bourne, G.C., structure of Enigma 



senigniatica, 253 

 Buds of Cephalodiscus, plumes of, by 



W. G. Ridewood, 221 



Carcinus, fixation of Sacculina upon, 



by G. Smith, 625 

 Cattle-fever, parasite of Texas, by 



H. B. Pantham, 297 

 Cephalodiscus, development of plumes 



in, by W. G. Ridewood, 221 

 Cephalodiscus, Neurospori- 



dium, a sporozoon in, by W. G. 



Ridewood and H. B. Funlham, 81 



Cliaetognatha, or primitive MoUusca, 



by R. T. Giinther, 357 

 Chemical composition of Radula, by 



I. B. J. Sollas, 115 

 Chromatin masses of Piroplasma 



bigeminum, by H. B. Fantliam, 



297 

 Convoluta, green cells of, by F. 



Keeble and ¥. W. Gamble, 167 

 Cypris larva of Sacculina, fixation of, 



by G. Smith, 625 



Degeneration in Opalina, by C. C. 

 Dobell, 633 



Dendy, A., parietal sense-organs of 

 Geotria, 1 



Development of Frog, occipital re- 

 gion, by A. I. M. Elliot, 647 



Development of head-muscles in 

 Gallus, by F. H. Edgeworth, 511 



Development of Ophiothrix fra- 

 gilis, by E. W. MacBride, 557 



Development of plumes in Cephalo- 

 discus, by W. G. Ridewood, 221 



Development of Radula, by I, B. J. 

 Sollas, 115 



Development of teeth in Ornitho- 

 rliynchus, by J. T. Wilson and J. 

 P. Hill, 137 



