*T)aIate, nervous structures of in frog, 93. 



-*■ *Paramecium, behavior of, 441. 

 Paraphysis, development of in fowl, 369. 



Parker, G. H. The phototropism of the mourning cloak butterfly, 291. 

 •*Pearl, R. On the behavior and reactions of Limulus, 138. 

 Pecten, eye of, 292. 

 ^'Perception, of space in tortoises, 17. 

 Periplaneta, nervous cytology of, 287. 

 Phototropism, of butterfly, 291. 



, of Daphnia pulex, 289. 



, in man, 376. 



Physiology, of the nervous system, 364. 



* , comparative method in, 271. 



* , and psychology, 51 1. 



Piper, H. Electro-motor changes in the retina of Eledone, 434. 



Police, G. Nervous system of scorpion, 371. 



Porter, J. P. Preliminary study of psychology of the English sparrow, 439. 



*Prentis.s, C. W. The nervous structures in the palate of the frog, 93. 



"•■■Psychology, comparative, 360. 



* , and physiology, 511. 



Races, encephalic anatomy of, 369. 

 'Ranson, S. W. Degeneration in cor])us callosum of white rat, 381. 

 *Rat, degeneration in the corpus callosum of, 381. 



"•'■ , form and contents of nucleus in the spinal cord of, 27. 



, psychology and growth of nervous system of, 70. 



Rate of impulse, in sensory nerves, 2c6. 



, in hagfish, 204. 



Raymond, F. and Janet, P. Les obsessions et la psychasthenie, 208. 

 Reactions, of Daphnia to light and heat, 289. 



* , of Limulus, 138. 



* , of Paramecium, 441. 



* , social, in animals, 118. 



Reighard, J. The natural history of Amia calva, 2S2. 



*Reinforcement, of reaction in the frog, 124. 



Retina, changes in, 372, 374, 375, 434. 



*'Rheotropism, of Paramecium, 468. 



Ritter, W. E. and Davis, B. M. F2cology, of enteropneusta, 580 



Ritter, W. E. Habits of Autodax lugubris, 380. 



Rossi, G. Fiber tracts in the brain of the tortoise, 203. 



Salamander, habits of, 380. 

 Sar<;en T, P. E. The torus longitudinalis of the teleost brain, 289. 

 ScHLAPi', M. G. The microscopic structure of cortical areas, 369. 

 Scomber, the skull and cranial nerves of, 83. 

 Selachians, development of ventral nerves of, 285. 



_1 , a new cranial nerve in, 281. 



*Senses, of guinea pig, 293. 



, lateral line in Torpedo, 368. 



Sensations, subjective of sight and hearing, 207. 



Sense organs, of lateral line in Amphibia, 433. 



Sensory nerves, rate of impulse in, 206. 



Sight, subjective sensations of, 207. 



Skin, neural structures in, 208. 



*Slug, fluidity of conducting substance in pedal nerves of, 85. 



Smallwood, M. E. The beach flea, 378. 



, \V. M. Natural history of some nudibranchs, 440. 



Smell, 378. 



Smith, G. E. On the morphology of the cerebral commissures, 81. 



Snake, physiology of the nervous system of, 205. 



