INDEX 



371 



Tics, 58, 235 



Tissues, the, lining membrane and 

 pulp tissues (lepidic and hylic), 

 311 



Torhorst, 174 

 f Tornier, 266 



Torrey, 199 



Toxins as causes of cell prolifera- 

 tion, 282; and antitoxins, relation 

 of, 60 



Trench fever, 22, 42 



Trench shin, 22, 42 



Trophoblast, 327 



Tuberculosis, antiquity of, 16 ; bovine, 

 in man, 26 ; not inherited, 141 ; 

 inheritance of diathesis, 158 ; 

 pulmonary, assumption of habit 

 in, 235 



Tuberculous diathesis, inheritance of, 

 61 



Tumours, causation of, 273 et seq. ; 

 benign and malignant, 280 ; defini- 

 tion, 281 ; due to parasites, 283 ; 

 in plants, 283 ; starting - point 

 common to all, 295 ; the " habit of 

 growth " theory, 301 ; microbes as 

 a causative agent, 302; melanotic, 

 319; the cells as parasites, 330; 

 mixed, 335 



Tumours, classification of, 305 et seq.; 

 embryogenetic, 284; Waldeyer's 

 classification, 305 ; by cell potency, 

 334 et seq. 



Twort, 31 



Van Tieghem, 17 



Variability, of bacteria, 103 et seq. ; in 

 protozoa, Weismann on, 106 ; tran- 

 sient, 108 



Variation, chance and, x; inherent 

 or acquired, 6 ; influence of sexual 

 conjugation, 13 ; by loss of factors, 

 34 ; in pigment production by 

 bacteria, 56; and variability, 355, 

 358 



Variations, favourable, 10 ; fortuitous, 

 11; impressed, 28; impressed, as 

 against chance, 33; specific, ex- 

 perimental production of, in 

 bacteria, 33 



Vaughan, Victor C, on protein split 

 products, 38, 91, 253 ; anaphylaxis, 

 254 



Vegetative activities, 84 



Verocay, 344 



Verworn on the enucleated cell, 195 ; 



on nucleo-oytoplasmic relationship, 



195 

 Vibrio metchnikovi. See Spirillum 

 Vincent, 37; on B. typhosus, 109; 



on B. megatherium, 152 (note) 

 Von Chauvin, Marie, 67 (note) 

 Von Hansemann, 59; on tumours, 



288; on classification of tumours, 



307 

 Virchow on cells as vital units, 85 ; 



on myelin, 170; and the develop- 

 ment of pathology, 189 

 Virulence, exaltation of, 35, 116 ; 



development of, in non-pathogenic 



bacteria, 39 

 Vital inertia, 55, 166 



Walcott, C. D., 17 



Waldeyer, 305 



Waldvogel and Mette, 184 



Walker, 143, 147 



Walter, Ainley, on mutations, 29 

 (note) ; on changes in fermentative 

 powers of bacteria, 36; on adapta- 

 tion by bacteria, 43 (note) 



Walter, 66 



Warren, Collins, 277 



Wasserzug, 116 



Watson, 62 



Webster, J. C, 327 



Weigert, C, on law of inertia, 55, 167 ; 

 on cell activities, 85; on cell 

 proliferation, 282 



Weismann, A., against the inheritance 

 of acquirements, 6 ; his influence, 

 72; on biophores, 80 (note); on 

 continuity of , the germ plasm, 83, 

 210; on variability in protozoa, 

 106 ; his theory of inheritance, 134, 

 136 et seq. ; on somatogenic in- 

 fluences on germ cells, 136; on 

 blastogenic inheritance, 158; on 

 the value of hypothesis, 160; the 

 "Beductio ad absurdum," 210 et 

 seq.; on muscle spindles, 268; Sir 

 B. Ray Lankester on, 356 



Welch, W. H., on adaptation by 

 bacteria, 43, 164 



Whitman, 84 



White, C. P., definition of true 

 tumours, 281 ; on microbic stimula- 

 tion of cell growth, 329 ; on pro- 

 gressive hypertrophy, 340 



Willey, A., 18 (note) 



Williams, 310 



Wilms, 335 



