Infectious diseases, 97 carriers of, 185 comparison with fermentation, 108 epidemics of, 98 endemic, epidemic and sporadic forms, 188 modes of transmission, 161 Inflammation, 80 acute and chronic, 95 Injury, 54-74 Insanity, 231 causes of, 232 question of increase, 235 Lesion, 17 Leucocytes, 36 migration of, 92 Living matter, 10 Malaria, 175 role of mosquito in transmitting, 178 Malformations, 211 heredity of, 215 Maternal impressions, 212 Nervous system, 228 disease of, 230 effect of social life on, 233 Neurasthenia, 238 Old age, 51 atrophy in, 51 blood vessels in, 54 causes of death in, 56 in animals and plants, 55 mental activity in, 53 Osmosis, 91 Opsonius, 153 Ovum, 201 fertilization of, 198 infection of, 199 Phagocytosis, 86 Plague, 182 transmission by animals, 183 Plasmodium Malariae, 175 Preventive medicine, 242 Protozoa, 124 distribution in nature, 125 mode of growth, 125 sexual differentiation, 125 spore formation, 125 Polyomyelitis, 190 Repair, 46 conditions influencing, 47 Scar, 49 Skin, 21 Sleeping sickness, 173 Smallpox, 187 Spontaneous generation, 106 Sunburn, 83 Syphilis, 193 Tetanus, 142 Thymus, 52 Thyroid, 37 Tonsils, 52 Toxins, 144 Tropisms, 93 Trypanosomes, 172 Tuberculosis, 163 infection by sputum, 169 modes of extension, 163 Tumors, 64 benign and malignant, 69 cells of, 66 color, size and shape, 65 growth of, 65 importance of, 77 origin of, 66 question of increase, 69 theories of cause, 71 treatment of, 77 Typhoid fever, 170 Ultra-microscopic organisms, 128 Virus, 128 Yellow fever, 178