INDEX 



555 



Psychology, 15. 

 Psychozoic Era, 148. 

 Pterodactyl, 367. 

 Pteronarcys, 269. 

 Pterosauria, 365, 366, 367. 

 Pulmonates, 245. 

 Pupa, 279, 288. 

 Pure lines, in heredity, 194. 

 Pycnogonida, 261. 

 Pyramidula ralstonensis, 244. 



Quadrulella, 192. 

 Quaternary (Cenozoic) Era, 148. 

 Quercus fendleri, 160; Q. ramaleyi, 

 1 60. 



Rabies (hydrophobia), 487. 



Raccoons ; see Procyonidse. 



Radiolaria, 187, 192, 477. 



Radius, 332. 



Ratio, three-to-one, 45 ; see also 

 Mendelism. 



Reality, i. 



Reason, 30. 



Recessives, 44, 133. 



Reduction division, 66-67; see also 

 Generation. 



Reed, Walter, 203. 



Reflexes, 336. 



Reform, 534. 



Regeneration, 39. 



Regions and Zones, Life, 454-478. 



Reid, Archdall, 489. 



Renilla, 39. 



Repletes, 304. 



Reproduction ; see Generation. 



Reptilia, 182, 340, 364-372, 373, 

 432; see Chilonia ; Crocodilia; 

 Dinosaurs; Lacertilia ; Ophidia; 

 Plesiosaurs. 



Respiration, 31-36; adaptation to 

 atmosphere, 31; apparatus of, 

 35-36; function of, 35; oxida- 

 tion, 31-34. 



Reticularia lycoperdon, 190. 



Rhabdoccelida, 230. 



Rheiformes, 384; Rhea darwinii, 107, 



384- 

 Rhinoceros, 367; see Perissodactyla. 



Rhizopoda, 191-192, 197, 200. 



Rhopalocera, 288. 



Rhynchota (Hemiptera), 64, 276- 



277. 



Rhythm of life, 12; of insects, 315. 

 Ribs, 329. 

 Rickets, 20. 

 Ridgway, R., 395. 

 Riley, W. A., 279. 

 Ritchie, J. W., 23, 24. 

 Rockefeller Sanitary Commission, 



235- 



Rodentia, 404-407, 433. 

 Rodway, James, 466. 

 Rogers, Julia E., 252. 

 Roosevelt, Theodore, 466. 

 Ross's gull, 468. 

 Rotatoria, 181, 235-236, 254. 

 Rothmann, 165. 

 Rotifers ; see Rotatoria. 

 Roundworms ; see Nemathelminthes. 

 Rousseau, Jean-Jacques, 281. 

 Roux, 488. 



Sagenodus, 344. 



Saint-Pierre, Bernardin de, 281. 



Saliva, 30. 



Saturniidse, 289, 291. 



Sawflies ; see Hymenoptera. 



Scale insects ; see Rhynchota. 



Scaphopoda, 249. 



Scapula, 330. 



Schimper, 510. 



Schneider, E. C., 35. 



Schcetensack, Homo heidelbergensis of, 



440. 



Schuchert, Charles, 147, 156. 

 Sciurus, 407. 



Sclater, P. L., 447, 448, 449, 450. 

 Sclerostomum, 234-235. 

 Scolex, 232. 

 Scolopendra, 266. 

 Scolopendrella, 266. 

 Scopa, 293. 

 Scorpion flies ; see Mecaptera (Panor 



patse). 



Scott, W. B., 421, 469, 471. 

 Scudder, S. H., 292, 319, 516. 

 Scutigerella, 266. 



