INDEX 



Except when it is desired to call particular attention to different points under the same 

 subject head on successive or closely following pages, page references give only number of 

 first page concerned; following pages may deal with the same subject. 



Acceleration, differential: of planarian head, 

 192; of fish development, 257; of frog de- 

 velopment, 262 



AccUmation, differential: to external agents, 

 72. See also Conditioning, differential; 

 Tolerance, differential 



Acetabularia, reconstitution in, 31, 361 



Acrasieae, development of axiate pattern in, 

 636 



Allolobophora, physiological gradients of, 122 



Amblysloma: somite modification by lithium 

 in, 264; eye field of, 282; hmb field of, 286; 

 otic development in, 288; limb trans- 

 plantation in, 390; exogastrulation in, 463; 

 lens development in, 489; otic induction 

 in, 496; balancer of, 498; species-specific 

 growth in, 718. See also Amphibian de- 

 velopment; Amphibian dorsal inductor; 

 Amphibian limb 



Amphibian development : differential suscep- 

 tibiUty in, 151, 255; dorsiventrahty in, 

 151, 259, 286, 289, 390, 657, 684; respira- 

 tion in, 153; glycolysis in, 154; dye reduc- 

 tion in, 156; sulphydrylin, 157; embryonic 

 differential inhibition in, 258, 262; obliter- 

 ation of pattern in, 259; secondary modi- 

 fications of, 262; effects of ligature on, 266, 

 524; hybrid differential inhibition of, 267; 

 in relation to gravity, 428; dominance in, 

 43 S; formal patterns of, 447; cell move- 

 ments in, 448; neural induction in, 454; 

 normal embryonic, 456; exogastrulation 

 in, 463, 464; lens induction in, 472, 488, 

 491; induction of optic parts in, 496; in- 

 cluction of balancer in, 499; gill induction 

 in, 500; "double assurance" in, 500; 

 blastomere reconstitution in, 523; after 

 Ugature, 524; independent differentiation 

 in, 528; effect of embryonic fusions on, 

 542; effect of centrifugal force on, 584; 

 dispermy in, 595, 685; gray crescent in, 

 657, 684. See also Amphibian dorsal in- 

 ductor 



Amphibian dorsal inductor: differential sus- 

 ceptibility in, 152, 263; respiration of , 153; 

 glycolysis in, 154; glycogen in, 156, 477; 

 dye reduction in, 156, 157; sulphydryl in, 

 157; differential inhibition of, 258; effect 

 of implants of, 455; not species-, genus-, 

 or order-specific, 457; change in capacity 



for reaction to, 458; regional differentia- 

 tion in, 459, 460; regional specificity in, 



461, 526; neural differentiation without, 



462, 466; reconstitution of, 462; formation 

 of, from other ectoderm, 465; direction of 

 invagination of implanted, 468; origin of, 

 486; in ligatured eggs, 524; in centrifuged 

 eggs, 584. See also Amphibian develop- 

 ment; Induction 



Amphibian Umb: early stages of, 19; field of, 

 225, 285, 293; dominance in field of, 286; 

 nervous influence in regeneration of, 341; 

 new polar pattern in regeneration of, 370, 

 390; reduplication and mirror-imaging of, 

 390; transplantation and dorsiventrahty 

 of, 391; rotation of transplants of, 394 



Animalization, in echinoderm development, 

 243 



Annelids: reconstitution in, 47, 48, 337, 355, 

 368; differential susceptibility of, 120, 126, 

 128; oxygen uptake of, 121, 123; CO2 pro- 

 duction of, 122; differential dye reduction 

 in, 124; other differentials in, 127; larval 

 differential inhibition in, 247; dedifferen- 

 tiation in, 301 ; cephaUc independence in 

 reconstitution of, 336, 339; bipolar forms 

 of, 368; twinning in, 537, 558; cleavage of, 

 547, 548; polar lobes of, 551; reconstitu- 

 tion in embryo and adult, 562; differentia- 

 tion without cleavage in, 596; forms of 

 development in, 597; oogenesis with ac- 

 cessory cells in, 665 



Antennularia, gravity and polarity of, 422 



Aplysia, developmental pattern of, 143 



Arbacia: larval development of, 197; differ- 

 ential inhibition in, 199; differential toler- 

 ance, conditioning, and recovery in, 204; 

 effect of centrifugal force on development 

 of, 427; gradient pattern of, 739 



Arenicola: embryonic differential suscepti- 

 biUty of , 120; cleavage of, 547, 553; oocyte 

 of, 658, 676; spiral aster in, 680 



Armadillo: polyembryony in, 539, 690; mir- 

 ror-imaging in, 693 



Arthropods: cleavage patterns of, 574; sper- 

 matozoa of, 622; oogenesis of, 662, 667 



Ascaris: giant eggs of, 541 ; germ path in, 568; 

 cleavage pattern of, 570, 571; axiate pat- 

 tern of, 570, 572, 574, 681; centrifuged 



801 



