XVI CONTENTS. 



Echinoderma. 



FAGJ. 



Mortensen, Th. — Development of some Echinoderms 47 



Rosen, F. — Ova of Echinaster sepositus 47 



Ublsch, L. v. — Development of Sea-urchins 47 



Tenn ant, David H. — Echinoderm Hybridization 175 



Dj aronov, A.— Viviparity and Growth in Amphiura squarnata 262 



Scott, John W. — Evisceration and Regeneration in Thy one briareus 263 



Herlant, M. — Artificial Parthenogenesis in Sea-urchin Ova 357 



Haanen, W. — Minute Structure of Mesothuria intestimdis 546 



Jordan, H. — Musculature and Skin of Holothurian* 546 



Meves, Fr. — Fate of Middle Piece of Echinoid Spermatozoon 547 



Ritchie, Jamis, & J. A. Todd — Abnormal Sea-urchins 547 



Wood, Elvira — Crinoid Arms in Phytogeny 547 



Ccslentera. 



Drzewina, Anna, & G. Bohn— Study of Eleutheria 47 



Apstein, J. — Germ -cells of Leptomedusse 48 



Faure-Fremiet, E. — Nematocysts of Polykrikos and Campanella 48 



Arndt, W. — Fat in Sea-anemones 176 



Walton, Ch as. L, & Olwen M. Rees— Structure of Sea-anemones 176 



Kinoshita, K. — Axis of Alcyonarians 176 



Gravier, Cm..— Incubation in Antarctic Alcyonarians 176 



Schvlze, P. — Hypertrophy of Tentacles in Hydra 264 



Billard, A. — Siboga Plumularids ., .. 264 



Bale, W. M.- Australian Hydioids 264 



Benoit, P. — Formation of Gonophore in Tubuluria and Myriothela 261 



Light, S. F. — Structure of Eudendrium grifjini 264 



Robson, Joyce H. — Abnormal Ephyra of Cyanea capillata 265 



Krasinska, Sophie — Histology of the Medusas 265 



Cale, K. M€ller — Development of Thccaphore Hydroids 266 



McMurrich, J. Playfair -New Aciimians from British Columbia 266 



Broch, Hjalmar— H ydrozoa henthonica 357 



Muller, H. C. — Symbiosis in Hydroids 358 



Bourne, Gilbert — Alcyonarian with Simple Tentacles 358 



Niedeismayer, Albert — Minute Structure of Veret ilium 454 



Tsdkaguchi, R. — Minute Structure of Ovarian Ovum of Aurelia aurita 455 



Lochmann, L. — Development of Siphonophora 456 



Robson, J. H. — New British Gymnoblastic Hydroid 548 



Light, S. F. — Philippine Alcyonarians 548 



Poriiera. 



Suhwan, A. — Hexactinellid and lladiolarian Spicules .. .. 48 



Lebwohl, Fr. — Japanese Tetraxonid Sponges 456 



Penaro, E. — Remarkable In fusorian 45y 



Sharp, R. G. — Diplodinium ecaudatum 457 



Alexeieff, A. — Life-history of lchthyosporidium gasterophilum 458 



Tregodboff, G. — Life-history and Relationships of Stenophora 45,s 



Crawley, Howard — Sew Sarcosporidia 459 



„ „ Development of Sarcocystis muris 459 



