366 



INDEX. 



M 



Mal-E, in civilized society, forms of, 



212 



in primitive tribes, 213 

 primary, 25 

 secondary, 25 

 Male and female, muscularity of, 65 



intellectual capacity of, 65 

 Male element, influence of, on the 



female organism, 123 

 Malignant bacteria, several varieties 

 of, 345 

 change a retrogressive one, 349 

 growths, parasitic origin of, 342 

 Man, Spencer on the moral, 257 

 Marriages, late, 261 

 Marrying for money, 275 

 Masturbation, 152 

 Material conditions, 4, 175, 176 

 effects, 6 



a theoretical planetary sys- 

 tem, 5 

 Maternal impressions, 131 

 Maudsley on insanity, 165, 168 

 Menopause, its influence on women, 



61 

 Menstrual rhythm, in woman, 53 



in man, 54 

 Mental E of the two sexes different, 62 

 evolution in women, notes on, 

 270 

 Micro-organisms, adaptation to, 232 

 hygienic science and, 234 

 individuals differ in their resisting 

 power to, 233 

 Millican, K. W., 338 

 Mind, influence of the, upon the body, 



317 

 Modifications of S come through E, 



334 

 Molecule, arrangement of the atoms in, 



9, 10 

 Monsters may be children of healthy 



parents, 223 

 Motions, foul-smelling, of children, 



150 

 Mott, Dr., a paper by, 280 

 Muscular exercise, quantity of, needful 

 to health, 230 



N 



" Naturalness," degree of adaptation, 



the only criterion of, 288 

 Natural selection, 185, 191 



and the procreative period, 264 

 comparative activity of, in man 



and the lower animals, 253 

 influence of reason on, 201 

 Spencer on, 191 

 war and, 203, 222 

 Natural variations, are always altera- 

 tions wrought by E, 142, 159 

 causes of, 143 



differences in E the primary 

 cause of, 142 

 Nature's laws fixed and unchangeable,2 

 Necessarily-fatal-E, 207, 208, 240 

 Nervous diseases, 340 



system and disease, 20 

 New Zealand and Australia, extinction 



of aborigines in, 248 

 Non-infectability of some children with 



certain febrile disorders, 161 

 Non-symptomatic disorders, 306 

 Normality of S and E, 290, 292 

 of S, best test of, 299 

 potential, 298 

 Nosology, 27 

 Not-necessarily-fatal- E, 207 







" Occupation diseases," 227 



Outdoor life contrasted with indoor 

 life, 99 



Ovaries, their influence on the indivi- 

 dual, 61 



Ovum, the, 13 



Ozone, absence of, in London, 242 



Paget, on the vis medicatrix naturce, 

 97 



on the difficulty of obtaining a 

 hereditary history, 120 



on the dependence of the tuber- 

 cular diathesis upon external 

 conditions, 160 



on cancer, 346 



