324 



INDEX OF SUBJECTS 



Birds' eggs, effect of electric current 

 on 91. 



Blaste^na, metanephric, see Kidney. 



Blastocoel, see Segmentation cavity. 



Blastocyst of Mammalia, 2, 6, 7, 115. 



Blastoderm, of Arthropods, 5, 114, 

 273 ; of Cephalopods, 6 ; of Sauro- 

 psida, 6 ; growth of, without for- 

 mation of primitive streak, 104 ; 

 growth of oxygenotropic, 114, 273 ; 

 isotropic, in Teleostei, 179. 



Blastomeres, separate, in Tricladsand 

 Salps, 5 ; in Oceania, 181 ; grouping 

 of, in Salps, 11 ; size of, 29 ; separa- 

 tion of, 45 ; before division, 45 ; 

 in calcium-free sea-water, 45, 150 ; 

 without magnesium, 148; flattened 

 against one . another, 45, 53 ; 

 movements of, 29, 42, 53. 



'isolated' development of, in the 

 Frog, 159-161,169-171,173 ; in the 

 Newt, 173 ; in Fishes, 178 ; in Am- 

 phioxus, 179, 180 ; in Coelenterata, 

 181, 182 ; in Echinoderms, 190 sqq. ; 

 in Neinertines, 204,205 ; in Cteno- 

 phora, 209-211 ; in Mollusca, 

 215 sqq. ; in Ascidia, 229, 230, 

 237, 239 ; reason for differences in 

 behaviour of, 241-244. 



Blastopore, dorsal lip of, in Frog, 

 80 ; in forcibly inverted eggs, 82, 

 84 ; rim of, thickened by heat, 99 ; 

 fails to close, 99, 119 sqq., 133 ; 

 in half-blastomere of Frog, 170; in 

 double monsters of Fz-og, 172; 

 injury to lip of, in Fishes, 178 ; 

 in Ascidia, 235 ; in Molluscs and 

 Annelids, 244. 



Blastula, of Echinoderms, 2, 6, 115, 

 185 ; in lithium salts, 137 ; opaque, 

 without potassium, 146 ; opaque, 

 in neutral media, 150; crumpled, 

 without carbonate, 148 ; of Coe- 

 lenterates, 6 ; of Sponges, 6 ; 

 pieces of, in Siphonophora, 181 ; 

 in Echinoids, 194 ; in Nemertines, 

 206 ; long-ciliated, from animal 

 cells of Echinoids, 192 ; united to 

 form one embryo, 201, 202. 



Bleu de Lyon, 94," 96. 



Blood, the first to be formed (Harvey). 

 14. 



Blood-vessels, growth of, 5 ; branch- 

 ing of, 6 ; lumen of, 11 ; distended 

 at low temperatures, 104 ; muscles 

 of, 273. 



Blue light, 94-96. 



Bolina, 210. 



Bombinator igneus, Pfliiger's experi- 

 ments on eggs, 82, 83. 



Bone, 2 ; and tendon, 5. 



Bonnetty machine, 91. 



Bostonschool-children, growth of, 63. 



Boys, see Human being. 



Brachystola, 256. 



Brain remains open in certain 

 solutions, 119 sqq. 



Bmnchipus, 22. 24, 47. 



British Periwinkles, 71. 



Bromides, 123, 132, 133, 134. 



Bromine, 141, 145. 



Budding, a form of development, 1 ; 

 nucleus in, 284, 285. 



Buds of Doliolidae, 5 ; of plants, 11 ; 

 of Vertebrate limbs, 11. 



Bitfo, absorption of water by tadpoles, 

 58 ; acclimatization to heat, 100 ; 

 rate of growth affected by tempera- 

 ture, 102 ; effect of solutions, 120. 



Butyrate of sodium, 140. 



Caesium, 146. 



Caffein, 120. 



Calcium, effect of absence of, 45, 148 ; 

 effect on cilia and muscles, 135, 

 150; acetate, 49; phosphate, 58, 

 149 ; chloride, 123, 133 ; nitrate, 

 135 ; hydrogen phosphate, 148, 

 150 ; carbonate, 148, 150 ; sea- 

 water without, for isolating blasto- 

 meres, 45, 150, 190. 



Cattidina, 34. 



Cane-sugar, effect of, on Frog's eggs, 

 120, 121, 133, 135, 136 ; artificial 

 parthenogenesis, 123. 



Capillaries, 5 ; anastomoses of, 6 ; 

 absence of, without oxygen, 110. 



Capillarity, in cell-division, 41 sqq., 

 145. 



Capitella, 26. 



Carbon dioxide, fatal to Frog's eggs, 

 110 ; to Teleostean ova, 111 ; to 

 Echinoid eggs, 112 ; not fatal to 

 Ascan's eggs, 112 ; quantitative 

 determination of, 112 ; excess pro- 

 duced by Chick in pure oxygen, 

 112; neutralized by hydroxyl, 151. 



Carbonate, necessity of, 148-150. 



Carbon-ion, see Carbonate. 



Carcinus moenas, growth-rate, 71 ; 

 decrease of variability, 72, 74. 



Cardinal temperature points, see 

 Temperature. 



Cartilage, 2. 



Catamenia, 294. 



Cation, 136, 145. 



Causal, see Cause ; causal harmony, 

 284, 285, 292. 



Cause, explanation in terms of cause 

 and effect, 12, 20, 286-289, 290, 292, 



