_Leibnitz_, 350 _Levy, Miriam_, 221 _Lewis, C.J. and J.N._, 165 Lichtenstein, Ulrich von, 118 Life-history albums, 199, 212 _et seq._ _Lischnewska, Maria_, 248 _Lobsien_, 226 _Loomis, C.B._, 361 _Lorenz_, 21, 373 Love, and the woman's question, 59, 101, 113 _et seq._; and eugenics, 203 _et seq._ Luther, 94, 228, 306 Mackay, J.H., 393 _Macnamara, N.C._, 179 _Macquart_, 188 Maine, prohibition in, 279 _Mannhardt_, 204 _Manouvrier_, 86 _Marcuse, Max_, 94 Marriage, certificates for, 30, 44, 45, 209; economics and, 61; natural selection and, 204; State regulation of, 61 _et seq._; the ideal of, 101; in classic times, 114 Marriage-rate, 139, 164, 173 _Matignon_, 156 Matriarchal theory, 49 _Maurice, Sir F._, 180 _McLean_, 161 _Meisel-Hess, Grete_, 109, 130 _Meray_, 119, 365 _Mercier_, C., 20 Meredith, George, 129 Miele, 9 _Miers_, 354 Milk Depots, 8 _Mill_, J.S., 52, 71 _Moll_, 92, 93, 246 _Montaigne_, 115 _Montesquieu_, 37 _Moore, B._, 15, 185 Morals in relation to law, 48, 258 _et seq._ More, Sir T., 29 _Morgan, L._, 66 _Morse, J._, 224 Mortality of infants, 7, 13, 25, 138, 150 _et seq._ Motherhood in relation to eugenics, 46 Mothers, schools for, 9 _Mougins-Roquefort_, 312 Municipal authorities to instruct in limitation of offspring, duty of, 26 _Muralt_, 2 Mysteries, Pagan and Christian, 235 _Naecke_, 186 Napoleon, 69, 265 _Nars, L._, 69 National Insurance, 15 Nationalization of health, 15 Natural selection and social reform, 13 _Nearing, Scott_, 194 Neo-Malthusianism, 16, 26, 102, 159 _et seq._ _Nevinson, H.W._, 330 _Newsholme_, 7, 19, 137, 166, 172 New Zealand, birth-rate in, 148 _Nietzsche_, 190, 309, 334, 392 _Niphus_, 123 Norway, infantile mortality in, 14 _Noetzel_, R., 394 _Novikov_, 324, 330, 342 Noys, H., 29 _Nystroem_, 26 Obscenity, 255, 304 Oneida, 29 Ovid, 114, 132 Owen, Robert, 51 Pankhurst, Mrs., 85 _Partridge, G.L._, 219 _Paul, Eden_, 208 _Pearson, Karl_, 198 _Penn, W._, 341 _Perrycoste, F.H._, 212 _Peters, J.P._, 293 _Pfaundler_, 371 Pinard, J., 252 _Pinloche_, 244 _Plate_, 185 _Ploetz_, 210 _Ploss_, 167, 176 Police systems, 274 Post Office, inquisition at the, 276 Prohibition of alcohol in Maine, 279 Prosperity in relation to fertility, 169 _et seq._ Prostitution, and feeble-mindedness, 38; and sexual selection, 60; varying legal attitude towards, 285, 296 Puberty, psychic influence of, 231 _et seq._ Puericulture, 7 Quakers, 270 Quarantine, origin of, 5 Race, alleged degeneration of, 19 _et seq._, 37 Raines Law hotels, 293 _et seq._ _Ramsay, Sir W.M._, 305 _Ranke, Karl_, 169 _Raschke, Marie_, 99 Reform, Social hygiene as distinct from sexual, 1; four stages of social, 4 _et seq._ _Reibmayr_, 22 Religion, and eugenics, 208; and the child, 217 _et seq._ Reproduction, control of, 17 _Richards, Ellen_, 12 _Richardson, Sir B.W._, 65 _Robert, P._, 340 _Roberts, A.M._, 369, 370