454 



INDEX 



Protoplasm, electric stimulation 

 of, 61 



elements of, 87 



of the cell, 95 



thermal irritability of, 40 

 Protozoa, 93 

 Pseudopodia, 75 

 Pseudopods, 126 

 Psychology, 156 

 Pyrenin, 98 



QUARTER evil, vaccine for, 382 



RABIES, Pasteur treatment of, 



382 



Radiolaria, structure of, 112 

 Rauber on fertilization, 247 

 Raulin, 87 

 Receptors, 367 

 Recessive characters, 258 

 Redi, 22 

 Reduction division, 192, 194 



of chromosomes, 192 

 Reflex action, 46 



mechanism of, 153, 154 

 Regeneration, 387 



influences governing, 396 



in plants, 403 



of blood-vessels, 398 

 " of bone, 399 



of epithelial tissue, 398 



of muscular tissue, 400 



of nervous tissue, 400 



of viscera, 401 

 Reichert and Brown on blood 



relationship, 309 

 Relapsing fever, 338 

 Repair. See Regeneration. 



Reproduction, 83, 91, 169 



in animals, 188 



in ferns, 186 



in plants, 187 



in sponges, 185 

 Reproductive cells, 171 



system, development of, 123 

 Respiratory system, develop- 

 ment of, 144 

 Rhipicephalus bovis, 348 

 Rhizopoda, parasitism of, 324 

 Ribbert on transplantation, 414, 



418 



Rigidity, 36 

 Rigor mortis, 439 

 Romanes, 222 

 Ross (Sir Ronald) on malarial 



parasites, 344 

 Rotifer, cilia of, 78 



mechanical stimulation of, 45 

 Rotifera, 327 

 Round worms, 326 

 Rusts, 321 



SADLER on sex determination, 228 

 Sarcocystis, 325 

 Sarcopsylla penetrans, 331 

 Sarcoptes scabiei, 319 

 Scabies, 337 

 Scar, 398 



Schenk on sex determination, 229 

 Schistosoma hematobium, 340 

 Schleicher, 102 

 Schleiden, 93 

 Schroeder, 25 

 Schultze, 25 

 Schwann, 25, 93, 202 

 Scolex, 342 

 Seat-worm, 340 

 Segmentation cavity, 215 

 of ovum, 205 



