INDEX aru 
upon, 36 ff.; rate of, 28 ff.; suppres- 
sion of, by addition of KCN, 26, 71 
temperature coefficient of, 33. 
Oxygen, prolongation of the life of the 
eee Py. lack of, or addition of KCN, 
85 
Oxygen consumption, coefficient of, 
162; determination of, 26 ff., 114 ff., 
152i lop tie. LOL, 166.8. 
Palla, 278. 
Parthenogenesis, artificial, and fertili- 
zation with sperm in the same egg, 
233 ff.; and heredity, 291 ff.; and 
hybridization by sperm, 300 ff.; 
effect of the agencies of, upon oxida- 
tions, 113 ff.;- history of the earlier 
experiments on. 47 ff.; in the eggs 
of annelids, 257 ff.; in frogs, 271 ff.; 
in molluscs, 267 ff.; in plants, 277 ff.; 
in the sea-urchin, 65 ff.; in the star- 
fish, 249 ff.; induced, by bases, 147 
fies) DY; ethyl acetate, 66; by foreign 
blood and cell extracts, 191 ff.; by 
haemolytic agents, 68 ff.; by hy per- 
tonic solutions, air haipe 159 ffes) WDY; 
monobasic fatty acids, 67 ff. 
Parthenogenesis, natural, in insects, 
43 ff.; in starfish, 255 ff. 
Parthenogenesis, osmotic, 57 ff.; analy- 
sis of method of, 159 ff. 
Parthenogenetic egg, 
changes in, 113 ff., 123ff 
Patella, 230. 
Permeability of fertilized and unferti- 
cytological 
lized eggs, 121 ff., 136 ff., 149 ff. 
Pfliiger, 275. 
Physiological efficiency of isosmotic 
solutions, 127 ff 
Piéri, 201. 
Polistes, 46. 
Polynoe, 7, 8, 73, 149, 153, 244 ff., 247, 
268, 281; fertilization of, 257 if. 
Polyorchis, 130. 
Prostheceracus, 265. 
Protoplasm, cleavage of, 20. 
Psyche helix, 43 
Psychidae, 46. 
Pycnopodia, 197. 
~ Quincke’s albumin soap, 21. 
Radium, effects of, on sperm, 229. 
Rana, 272. 
Rana fusca, 49. 
Rana pipiens, 274. 
Rana silvatica, 274. 
Rana sphenocephala, 274. 
Ratzeburg, 43. 
Reaction velocity, 
ture on, 26, 32 ff 
Réaumur, 43. 
Ries, 217. 
Ringer, 54, 62. 
Ringer solution, 52, 110, 116, 147 ff., 
161, 263, 269, 304 ff. 
194, 200, 206, 
effect of tempera- 
Robertson, T. B., 21 ff., 
214 ff. 
Roux, W., 49. 
Samassa, 25. 
Schmid, 45 ff. 
Scott, 265. 
Segmentation of the egg, 20; tempera- 
ture coefficient of the velocity of, 
32 ff. 
Sex, determination of, in the frog, 275. 
Shearer, 71, 170. 
Siebold, von, 43 ff., 47 ff. 
Sipunculus, 247. 
Snyder, C. D., 102. 
Solenobia, 43, 46. 
Sperm extract, fertilizing effect of, 
201 ff. 
Spermatozoon, action of, upon the 
egg, 225 ff.; effects of radium upon, 
229. 
Sphaerechinus, 201 ff., 223; fertilized 
with sperm of Strongylocentrotus, 300. 
Starfish eggs, artificial parthenogenesis 
in, 249 ff.; maturation of, 243 ff.; 
natural parthenogenesis in, 255 ff. 
Stenotomus, 297, 299. 
Streaming phenomena, 21. 
Strongylocentrotus franciscanus, 56, 58 
ff., 186, 198, 203, 206, 222, 228, 225; 
fertilized with sperm of molluscs, 
230, 294; sperm of, used to fertilize 
eggs of sea-urchin, 292 ff., 296.” 
Strongylocentrotus lividus, 114, 116, 221 
ff.; sperm of, used to fertilize Sphae- 
rechinus eggs, 300. 
Strongylocentrotus. purpuratus, 6, 8. 
HO wood IO OOM salen Ate En ou, 
86 ff., 89, 91, 93, 96, 99, 102 ff., 107 
i LO 123, VSO ele 
146, 150 ff., 159, 178, 186, 190, 194, 
ff., 197 ff., 200, 203 ff., 207, 209, 213 ff.. 
217, 219 ff 237, 240, 247, 252; 261, 
268, 287 ff.; blastula stage of, 23; 
concentration of HO ions necessary 
for the development of, 34 ff.; 
cytological changes in the eggs of. 
123 ff.; effect of lack of oxygen or 
presence of KCN on development 
of, 30ff.; gastrula stage of, 23; 
hy bridization between, and Asterias. 
225 ff., 291 ff.; and S. franciscanus, 
292 ft. 296; increase of acid content 
of the egg of, 40 ff.; mechanism of 
membrane formation in, 17ff.; oxygen 
consumption of eggs of, 27 ff., 114 ff., 
152 ff., 155 ff., 161 ff., 166 ff.; pluteus 
Stage of, 23. 
Tangi, 38. 
Temperature, cytolysis produced by 
increase of, 185; effect of, upon 
development, 73 ff., 252 ff 
Temperature coefficient, determination 
of. for the velocity of segmentation, 
32 ff.; of development, 101 ff.; of 
membrane formation by means of 
acids, 146; of oxidations, 33. 
Tennent, 293, 301. 
Thalassema, ze fisias 
Thalassema mellita, 245, 263 ff. 
Thomson-Gibbs pHnciple, 218. 
Tichomiroff, A., 47 
Traube, Moritz, rie 
Van’t Hoff, 34, 101. 
Van’t Hoff solution, 34 ff., 60, 163 ff., 
261, 267. 
Vespa, 46. 
