Index to Volume J. 313 



PAI.E 



Pennariidae 37 



Perigonimus 29. 36 



repens 29 



Petalotricha ampulla 289 



Plankton, Tintinnidae of 287-306 



Plates, explanation of in 



Ecology, etc., of Young Enteropneusta 206, 208, 210 



Embryonic Fission in the Genus Crisia 149, 152, 154, 156 



Hydroida of Pacific Coast.. 84, 86, 88, 90, 92, 94, 96, 98, 100, L02, 104 



Poison Glands in Plethodon 262, 264, 266, 268 



Protective Devices in Salamanders 170 



Sense Organs in Microseolex Elegans 284, 286 



Some New Tintinnidae, etc 302, 304. 306 



Plethodon croceater 159, 161 



glutinosus 161 



oregonensis 158, 159, 161, 228 



Plumularia 75 



alecia, figs. 96, 97 75 



califormca 77 



goodei, figs. 98-100 76 



lagenifera 77 



lageuifera var. septifera, figs. 101, 102 7S 



palmeri 70 



plumularioides, figs. 103, 104 47. 7s 



setacea, fig. 105 48, 79 



Plumularia struthionides 73 



Plumulariidae 71 



Polarization, physiological 107, 111 



Poison glands, degeneration of 242-243 



muscles of -'•"■ l 237 



replacement of 227, 243 250 



secretion, reaction to stains 240 



structure of 231-237 



Polypide bud in Crisia 117 



relation to germinal layer in female colony 122 



relation to germinal layer in male colony 118 



relation to ovum 124, 125, 127, 129, 130, 132 



time and place of origin 117, 132 



Polymerias liim-l.su 70 



Position of gonophores in Plumularia goodei 76 



in Sertularella halecina 63 



Primary Embryo in Crisia 131 



ball stage 137 



development of 133 



disappearance of !"!-• 1*3 



early stages 134, 135 



late stage 14 2 



Proboscis of Enteropneusta 182, 183, 1S4, 1 85, 199 



