INDEX 



1123 



1018, 1019, 1028, 1030, 1044, 1046, 



1079 

 Duboscq, Grasse and Rose, 1015 

 Duca, 855 

 Dujardin, Felix, 208, 217, 413; quoted, 



10, 43; studies by, 11; conclusions on 

 Protozoa, 12, 43; controversy with 

 Ehrenberg re Infusoria, 192, 260 



Duke, 862 



Duke and Wallace, 875 



Dunihue, 130, 137, 436, 439 



Duryee, 354, 356, 357 



Dusi, H., food, etc., influencing growth, 

 477, 478, 479, 480, 481, 487, 488, 489, 

 490, 491, 502, 506 



Du Toit, 878 



Dyestuffs, use in experiments, 66 



Dysentery, amoebic: and bacterial com- 

 plications, 819-22 



Eaton, 850 



Ecological considerations, 4-8 



Ectoparasites, 7 



Ectoplasm (plasmagel), 47; elasticity, 87; 



contractility, 90, 91 

 Eddy, 533, 542 

 Edmondson, 914 

 Edwards, 53, 55, 59, 315, 333 

 EfimoflF, Nekrassow, and Efimoff, 393 

 Ehrenberg, C. G., 1093, 1094; studies by, 



11, 43, 413; conclusions on Protozoa, 



12, 13; controversy with Dujardin re 

 Infusoria, 192, 260 



fibrillar system, 200, 208, 209, 210, 216, 

 217, 219 



Ehrlich and his coworkers, 869 



Eikenberry and Waldron, 891 



Eimeria schubergj, life cycle, 573-78 



Eisenberg, E., 427, 428 



Eisenberg-Hamburg, 340 



Eksemplarskaja, 151 



Elasticity, of protoplasm, 87-90 ; of ir- 

 reversible structures, 89; shortening vs 

 active contraction, 90, 91; Vorticella, 

 209 ff., 217 ff., 258 



Electric current, effects of, 61 



Electricity, responses to, rhizopods, 305- 

 20; flagellates, 320; ciliates, 321-27; 

 colonial organisms, 327-32 



Elliott, A. M., 360, 468, 518, 537, 540, 

 542, 543 ; food, etc., influencing growth. 



484, 486, 487, 490, 492, 493, 501, 502, 

 503, 507 



Elliott, A. M., and D. F. Johnson, 501 



Ellis J. M., 145, 178; fibrillar system, 

 246 



Elmassian, 1082 



Elpatiewsky, 594, 595, 1074 



Emerson, 362, 369, 371, 378, 388 



Emik, 968, 969 



Encyclopaedia Britannica, 891 



Encystment, regenerative capacity, 779 



Encystment test, 31 



Endamoeba coU {Councilmania lafleuri), 

 life cycle, 569, 572 



Endomixis, reorganization by, 31-36; dif- 

 ference between conjugation and, 36; 

 macronuclear reorganization, 646-48 ; 

 endomictic phenomena, 648-54; autog- 

 amy, 654-59; coinage of name, 657; 

 periodicity, 659 f. ; genetical studies on, 

 660-62 ; literature cited, 662-65 ; segre- 

 gation of mating types at, 756 



Endoparasites, 7 



Endoplasm (plasmasol), 47 



Endothelial cells, 833, 834 



Endozoic Protozoa, defined, 892 



Energy, respiration a means of studying, 

 353 f. ; investigations which concern the 

 source of, 368-72 



Engelmann, T. W., 29, 30, 34, 37, 96, 97, 

 1035, 1087; on conjugation, 14; fibrillar 

 system, 198, 201, 208-15 passim, 217, 

 221; motor responses, 273, 281, 282, 

 289, 305 



Enriques, 27, 622, 630, 633, 689, 703 



Entamoeba, pathogenicity of, 819-22 



Enterodela, 12 



Entodiniomorphina, 973 



Entodiscus borealis, fibrillar system, 236, 

 237 



Entorhipidium echini, fibrillar system, 236, 

 239 



Entz, G., Jr., 525 



Entz, Geza, fibrillar systems, 208-18 pas- 

 sim, 258, 259, 909, 914, 1088 



Environment, eflfect upon division and 

 growth, 45 ; role in determining con- 

 jugation, 700 f.; inherited degenerative 

 changes resulting from unfavorable 

 conditions, 716 f.; inherited modifica- 

 tions in form and structure, 712-23; 

 variation . . . without obvious action of 



