INDEX 



369 



PAGE 



Opium, and its effects 244, 245 



Orbicular bone 297 



Orbit of the eye 275 



Organic substances as food 79, 80 



Organs of circulation 136 



Digestion 116 



Eespiration 177-182 



Sigbt 274, 275 



Voice 308 



Oxygen 186 



Amount of, consumed in respiration. 186 

 Continually supplied by the atmos- 

 phere 198 



Pain, Relations of, to pleasure 255 



Sensation of 254 



Uses of 254-256 



Pancreatic juice 131, 132 



Uses of 182 



Pancreatin 132 



Paraplegia 223 



Parlor gymnasium 45 



Passages, Air 178-182 



Pelvis 22 



Pepsin 127 



Peptone 130 



Pericardium 154 



Peristaltic action of the stomach 128 



Peritoneum 131 



Perspiration, Daily amount of 60 



Sensible and insensible 60 



Uses of 60, 61 



Perspiratory glands 59, 60 



Physical strength 38, 39 



Culture 42 



Physiology 13 



Animal 13 



Comparative 13 



Human 13 



Vegetable 13 



Pia mater 211 



Plasma of the blood 146 



Pleura 178 



Pleiirisy 182 



Pneumogastric nerve 231 



Pneumonia 182 



Poisons and their antidotes 337-340 



Potash in the blood 79 



Potato 101, 102 



Presbyopia 291 



Preservation of the teeth 120, 121 



Ptyalin 123 



Pulsation of the heart 159, 160 



of the arteries 161, 162 



Pulse 162 



form of the 162 



writer 162 



Pylorus 126 



2A 



PAGE 



Eadial artery 162 



Red corpuscles of the blood 146, 147 



Reflex action of the spinal cord 225-227 



Requisites for 226 



Uses of 227-230 



Causing convulsions 226 



Objects of 225-227 



of the brain 236 



Rennet 81 



Respiration 177 



Change of blood in 188, 189 



Frequency of 183, 184 



Movements of 182 



Object of 177 



Organs of 177-182 



Respiratory labor 190, 191 



Rest, Necessity for 47, 48 



Retina 282-285 



Retinal light 282-285 



Ribs, Movements of, in respiration .... 182 



Saccharine substances 86 



Saliva 121 



Importance of 124, 125 



Secretion of 121, 122 



Salivary glands 121, 122 



Salt, Common 76-78 



Importance of 76, 77 



Scalds 383 



Scars from burns 333, 334 



Sclerotic coat of the eyeball 279 



Sebaceous glands 58, 59 



Secretion of 59 



Semicircular canals 299 



Sensation of pain 254 



Relations of, to pleasure 255 



of temperature 262 



of weight 263 



Modification of 254 



Production of 251, 252 



Variety of 252 



Sense of hearing 292-294 



sight 272,273 



smell 267, 268 



taste 264,265 



touch 259-261 



Sense, Muscular 263 



Thermal 262 



Senses, Special 257, 258 



Sensibility, General 253, 254 



Sewers, Danger from 848 



Shock 329 



Short-sight 288, 289 



Sick-room, Care of the 343-345 



Sight, Sense of 272, 273 



Organ of 274, 275 



Sinews .'. 85 



