HYDR0MEDUSJ5. 
Coel. 15 
Grafting and regeneration experiments on Clara squamata , Billard (13). 
Regulated reduction in Tubularia, Driesch (35). 
Grafting experiments in Hydra, Hefferan (77 & 78). 
Physiology; sensory reactions of Gonionemus murbachii, Yerkes (185). 
Physiology of the central nervous system of Gonionema murbachii , 
Yerkes (186). 
Ingestion and digestion in Hydra, Downing (32). 
Hypnotic effect of poison contained in the nematocysts of Physalia etc., 
PORTIER & KlCHET (137). 
Degeneration phenomena in the larvae of Gonionema, Perkins (133). 
Budding of the larvae of Gonionema murbachii, Perkins (131). 
Asexual division in Protohydra leuckarti, Aders (2). 
Development of Gonionema murbachii, Duerden (39a). 
Development and organogenesis of Clara squamata, Harm (73). 
Development and organogenesis of Gonothyrcea loveni, Wulfert (184). 
Variation, Hargitt (71). 
Geography. 
Iceland, list of 60 spp. collected, Saemundsson (149). 
tDenmark, fossil forms, Hartz (74). 
Lake Geneva, 2 spp., Forel (47). 
Triest, plankton, Steuer (159). 
Alassio, swarm of Velella, Sherrington (156). 
Riviera, Alassio, swarm of Velella, Thomas (167). 
Mentone, swarm of Velella, Thompson (168). 
North Atlantic, n. sp., Bedot (10). 
Gulf of Gascony and the Azores, Pictet & Bedot (135). 
North America, Pacific Coast, 22 n. spp., 1 n. g., Torrey (170). 
Southern California, Ritter (145). 
Woods Holl, 2 n. spp., Hargitt (69); notes on some Medusae new 
to this region, Hargitt (68). 
Tropical Pacific, 15 n. spp., Agassiz & Mayer (3). 
Bahamas, new form of Cladonema, Perkins (130). 
Falkland Islands, n. spp., Browne, Ann. Nat. Hist. (7) ix, pp. 272-283. 
New Zealand, South Island, n. gen. et sp., Dendy (30). 
Systematic. 
Hydrozoa, commensal with Hexactinellida , Ijima, J. Coll. Japan xv, 
pp. 1-299. 
Hydrozoa, comparative histology, Schneider, Lelirbuch vergleich. Hist. 
Jena 1902, pp. 206-212, 572-617, and in general section, pp. 1-176, 
text-figg. 
Hydroids from Iceland, 66 spp., localities and synonymy given, but no 
descriptions, Saemundsson, Vid. Medd. 19t)2, pp. 47-74, pis. i & ii. 
Hydroids from the “ Hirondelle” expedition, descriptions of species, with 
localities and synonymy, Pictet & Bedot, Resultats Monaco xx, 
60 pp., 10 pis. 
Siphonophora, origin of, Lameere, Ann. Soc. malac. Belgique xxxvii, 
pp. v-xviii. 
Abyla quincunx, p. 163, pi. xi, figg. 46 & 47, A. leuckartii, p. 165, A. 
huxleyi, p. 166, pi. xi, fig. 48, distribution, Agassiz & Mayer, Mem. 
Mus. Harvard xxvi. 
Aglaisma quincunx, characters and distribution, Agassiz & Mayer, t. c. 
p. 164, pi. x, fig. 45. 
Aglantha conica, Woods Holl ( Aglauridce ), Hargitt, Biol. Bull, iv, pp. 21 
& 22, fig. 7, n. sp. 
