INDEX. 



Reflex inhibition of heart, 88 



responses, purposive character 



of, 49 

 time, 48 

 Reflexes, action of drugs on, 49 



diffusion of impulses within the 



cord, 48 

 influence of chloral hydrate on, 



49 



influence of strychnine on, 49 



inhibitory, 88 



vasomotor, 112 

 Refraction, index of, 179 

 Refractive defects, correction of, 191 

 Refractory period of heart muscle, 97 

 Rennin, action of, 134 

 Reproduction, 3 

 Resistance in circulation of blood, 106 



to electric currents, 14 

 Respiration, 148 



artificial, 162 



diaphragm in, 157 



estimation of CO 2 and H 2 O in, 



163 



vagus nerve in, 154 

 Respiratory capacity, 151 

 centre, 159, 160 

 movements, 148, 154 



effect of anaemia on, 159 

 effect of temperature on, 



158 



quotient, 164 

 sounds, 149 

 Retina, 179 



formation of images on, 183 

 Rheocord, 15 

 Rheostat, 15 



Ring test for proteids, 132 

 Riva-Rocci sphygmomanometer, 119 



Saccharomyces cerevisiffi, 4 

 Saliva, action on starch, 125 



Saliva, chemical constituents of, 125 



secretion of, 121 

 Saponification, 134 

 Sartorius-muscle preparation, 20 

 Schema of circulation, 102 

 Sebaceous glands, 178 

 Secretin, action of, in pancreatic se- 

 cretion, 139 

 Secretion, gastric, 132 

 pancreatic, 138 

 salivary, 121 



collection of, 123 

 digestion by, 125 

 effect of atropine on, 124 

 effect of nicotine on, 123 

 effect of pilocarpine on, 124 

 nervous mechanism of, 121 

 Secretions, internal, 140 

 Semicircular canals, 54 

 Semimembranosus-muscle prepara- 

 tion, 20 

 Sensation, 171 



cutaneous, 173 

 tactile, 173 



tests of, 173, 174, 175 

 threshold value of, 173 

 Sense of sight, 178 



of temperature, 176 

 Serum, adaptation of, 78 



globulicidal action of, 77 

 Shadows, inversion of, 188 

 Shock, action of adrenalin in, 117 



blood pressure in, 117 

 Sight, sense of, 178 

 Smear, blood, method of prepara- 

 tion, 64 



Snellen, test letters of, 188 

 Sodium salts, action on heart mus- 

 cle, 93 



Specific gravity of blood, 71 

 Spectrum, absorption, 75 



blood pigments, 75 

 [204] 



