tional language of the future, 349 _et seq._

_James, E.C._, 123

James, William, 195

Japan, romantic love in, 115;
birth-rate and death-rate in, 155;
changed conditions in, 191, 322

_Jenks, E._, 312, 316

_Johannsen_, 152

_Johnson, Roswell_, 207

_Jordan, D.S._, 324

_Joerger_, 42

Jukes family, 41

_Kaan_, 91

_Kellerman, Ivy_, 369

_Key, Ellen_, 100 _et seq._, 130, 229, 394

_Kirkup_, 384

_Krafft-Ebing_, 92

_Krauss, F.S._, 92

_Kuczynski_, 142

Labour movement and war, 329

_La Chapelle, E.P._, 145

_Lacour, L._, 68

_Lagorgette_, 315

Laissez-faire, the maxim of, 3, 400

_Lancaster_, 231

Language, international, 349 _et seq._

Latin as an international language, 354

_Lavelege, E. de_, 321

Law, in relation to eugenics, 30, 45;
to morals, 48;
the sphere of, 312

_Lea_, 88

_Leau_, 350

_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 r