236 



INDEX 



Ophthalmometer, 193 

 Ophthalmoscope, Loring's, 195 

 OphthalmoBCOpic examination of ametro- 

 pic artificial eye by direct method, 

 195 

 of artificial eye by indirect method, 



196 

 of emmetropic artificial eye by 



direct method, 194 

 Optical illusions, 204 

 Osmometer, 217 

 Osmosis, 217 



Osmotic power of intestine, 217 

 Otolithic cavity in frog, 181 



PAIN spots, 170 



Pancreas, position of ducts of, diagram 



showing, 213 



Pancreatic juice, collection of, 213 

 Paradoxic contraction of muscle, 60 



resistance, 171 

 Patellar reflex time, 166 

 Percussion, 139 



of human stomach, 208 

 Perimeter, 191 

 Peristalsis, 215, 218 



influence of salts on, 21 8 

 Phenomenon, Babinski, eliciting of, 160 



Purkinje's, 202 

 Phlebograph, use of, 129 

 Phospfaenes, 190 

 Photic stimulation of muscle, 23 

 Phrenic nerves, 137 

 Pilomotor reactions, 225 

 Pithing, 23 



Placenta, study of, 146 

 Plasma, blood, relative amounts, 70 

 Plethysmograph, cardiac, 92 

 Pneumograph, Marey's, 129 

 Pohl's commutator, 56 

 Polarization, 28 

 Polygraphy, 129 

 Positive after-images, 200 

 Posture, effect of, on blood-pressure, 127 



influence of, on blood-pressure, 107 

 Preparation of secretin, 213 

 Pressure and touch, peculiar phenomena 

 and illusions of, 168 



in tympanum, 175 



intrapleural, 136 



intraventricular, schema of, 102 



secretory, 210 

 Primary current, 29 

 Protoplasmic streaming, 21 

 Pulmotor, 140 



Pulse, arterial, character and velocity, 129 

 heart action and, relation between, 

 129 



cause and velocity, schema illustrating, 

 103 



schema of, 102 



venous, character and velocity, 129 

 Pupil, size of, changes in, 184 

 Purkinje's phenomenon, 202 



QUALITY of color and intensity of light, 



202 

 Quickly interrupted current, 29 



RAILROAD nystagmus, 181 

 Rapidity of absorption and elimination, 

 219 



of elimination, 222 

 Reaction time, 165 

 with choice, 166 



to light, 165 



to sound, 166 



to touch, 165 



sensation, 165 

 Reactions, pilomotor, 225 

 Red blood cells, human, counting of, 73 

 corpuscles, enumeration, 70 



simultaneous count, 73 

 Reflex, accommondation, 184 



action, 159 

 study of, 155 



centers for hind legs, localization of, 156 



light, 184 



time, 157 

 patellar, 166 



winking time, 166 

 Reflexes, action, 159 



exaggeration of, by means of strychnin, 

 159 



in man, 159 



inhibition of, by higher centers, 159 

 upon ('(Mitral paths, lf>7 



spreading of, 157 



tendon, in man, 160 



Relation of weight to area stimulated, 170 

 Resistance, paradoxic, 171 

 Respiration, 133 



accessory movements, 141 



action of thorax in, 134 



artificial, 140 



center of, localization, 145 



elimination of carbcn dinxid in, 151 

 of water in, 151 



forced, 135 



frequency, 139 



glosBopharvBgea] nerve in, 141 



inferior laryngeal nerve in, 143 



influence of carbon dioxid in, 140 



larynx in, 141 



main trunk of vagus nerve in, 143 



mechanics of, 133 



nervous regulation of, 141 



normal, 134 



placenta in, 146 



self-regulation, 141 



superior laryngeal nerve in, 142 



trigeminal nerve in, 141 

 Respiratory activities, heart activities 

 and, relation between, 130 



movements in fish, 146 

 Retina, formation of image upon, 184 



mechanical stimulation of, 190 

 Retinal blood-vessels, 199 



image, formation of, 186 



