iv Subject Index 
Spinax iii 341-344 ; in organisms with many 
gonads ii 68-75, 77, 78 iv 409 ; parthenogenetic 
I 11, 129-154, 364 ; in peas i 228-254 ; of 
physical characters in manliind ii 357-462 
IV 287 ; of psychical characters in mankind 
III 131-190 ; taste and occupation ii 467-469 ; 
in rabbits ii 299-306 ; of sex ratio v 73-85 (man) 
V 436-449 (mice) ; in the Shirley poppy ii 56-100 
IV 394-426 V 33 ; statistical and physiological 
laws compared v 483 
Inaunc, anthropometric characteristics of Scotch 
V 298-350, supplement 
InstniDient for Ploltimj Curves to Various Scales 
III 469-471 
Integration, Finite Difference Formulae for i 273- 
303 IV 378 
Intelliqence iii 147, 155, 189 iv 78-80, 83 v 105- 
146, 197, 202, 485 
Interpolation hi/ Finite Differences, two Independent 
Variables ii 105-108 
Interracial Correlation ii 347-356 iv 286-312 
Interracial Iiese]nbla}ices betiveen the Sexes in 
Mankind iv 163 
Intestine, length of the small v 212 
Introspection iii 152, 155, 185 
Isolation (in Eomanes' sense) in Paramecium 
V 213-297 
Isotrop!/ of Frequency Distributions v 470-476 
Jellij-Fish I 90-108, 255 v 484 
John Dory ii 115-120 
Judgment and Measurement ii 338, 504-512 
Kidneys, Human in 63-83 
Kleistogamic i 12 
Kurtosis IV 172-212 ; and selection iv 505-510 
Leaves, beech iii 104-107 ; mulberry i 258 ; pine 
I 318 
Length of Life, assortative mating among English 
II 481-498 ; and fertility among English i 34- 
38 IV 233-285 ; inheritance of among English 
I 50-89 ; Makeham's formula i 298-303 ; mean 
for individuals dying within a year of birth 
IV 510-515 ; and priority of birth i 53-60 ; in 
Roman Egypt i 261-264 
Library of Original Data i 9 
Limbs of Vertebrates, their origin iii 313-365 
Linear Regression: see Regression 
Litter, inheritance of size of v 203-205, 436-449 
Liver, Human iii 63-83 
Lizard v 9, 51 
Lobster (Homarus) v 484 
Local Death Rates in mankind i 384 
Local Races, Helix nemoralis i 468-492 ; approxi- 
mate constancy of organic correlations v 19 ; of 
Man : see Races in Species Index ; of plants 
I 304-319 II 145-164 
" Lokaliza.tion Morphogenetischer Vorgiinge " v 53 
Longevity : see Lengtli of Life 
Lotus (Nelumbium luteum) v 485 
Lungivort iii 398-458 
Maize i 242 v 484 (Zea mais) 
Makeham's Formula for Mortality i 298-303 ii 263, 
503, 504 III 52-57 
3Iall<no I 339 
Marine Biological Association v 49 
Marriage, age at i 30-35 ii 20 iv 256-263; 
duration of life and number of offspring iv 264- 
280 ; and length of life ii 481-498 iv 233-247 
Mass Relations of Nucleus and Cytoplasm ii 241-254 
Mathematics and Biology, relations of i 3, 4, 5 
V 211 
Mating, Assortative, in mankind ii 372-377, 396, 
408-414, 481-498 iii 112 v 211, 213-297, 484 ; 
among the deaf iv 473 ; artificial in mice iii 
9-13 ; in Param,ecium v 213-297 
Mating, Preferential ii 373, 396 v 213-297 
Maxima of frequency curves, see Blode or 
Frequency Curves 
Measles witli Broncho- Pneumonia v 428, 429 
Mechanics of Living Organisms v 483 
Median ii 339-345 
Mendelism i 228-254, 320-344, 365-374 ii 44-55, 
101-104, 121, 165-173, 211-218, 228, 282-306 
III 107-112, 248, 263, 341-346, 363-365, 471-472 
IV 1-12, 427-464 v 36, 39, 42, 47-48, 79, 210- 
212, 478, 480-486 ; connection with the law of 
ancestral inheritance v 43, 44, 481-482 
Mendel's Categories, theory of ii 44-55, 121, 228 
Mental and Moral Characters : see Psychical 
Characters 
Merism and Sex in "Spinax Niqer" iii 313-365 
Meristic Variation iii 313-365 'iv 213-229 v 483 
Mice: see Mouse 
Micro-photography of lAve Ciliata i 401 
Microscopic Measurement Method ii 324 
Migrating Birds, speed of v 486 
Migrations of Human Races v 480 
Mi<iration, Random v 485 
3Iodes, apparent multiple i 304-319, 442 ii 114; 
determination of i 260, 329, 331 ii 2, 327, 339- 
345 ; of the sum of two Gauss-Laplacian distri- 
butions III 85-98 
Mo7nents, method of for fitting theory to observation 
I 265-303 
Moneywort i 11 
Mortality: see Length of Life 
Moths III 113-130 V 32, 51 
Mosailiarbeit v 147-167 
Moscatcl II 108-113 
Mosquito V 212 
Moulting of Daphnia ii 255-259 
Blouse I 244 ii 101-104, 165-173, 282-285, 294- 
298, 305 III 1-51, 108 iv 1-12, 431 v 41, 44, 
51, 212, 436-449, 483 
Mulberry Tree i 258 
Mule II 290 
Mutation i 228-254, 320-354, 365-374 ii 44-55 
V 210, 483, 485 
Natural Selection : see Selection 
Newt v 212 
Normal Distribution, test for in non-measurable 
characters v 470-476 
Nose, shape of in Scotch insane v supplement 
Nucleus II 241-254 
Occupations, contingency between father and son 
III 467-469 
Ordinates and Strips of Area iii 310-312 v 450- 
469 
Organic Correlation, in Arcella ii 321-337 ; in bees 
V 420 ; in the earthworm iv 213-229 ; effect of 
environment upon in Chilomonas v 53-72 ; in 
Eupagurus prideauxi ii 196-210 ; in Ficaria 
ranunculoides i 125-128 ; in Gelasimus pugi- 
