INDEX 



543 



Embryology, 526 



Endogamy, 416, 429 



Energy, Clerk-Maxwell's definition of, 



24s 



conservation of, 293, 343 



degradation of, 346 

 Environment, 378, 423 

 Erasmus, 3, 379 

 Ether, 178-179, 259-265 



element, 274-275, 282-293, 311, 320, 

 321 



mass, 311 



matter, 261 



motion, 283, 312 



sink, 267 



squirt, 267-269, 293, 317, 320 



unit, diagrammatically represented, 

 282 

 Euler, 537 

 Evolution, 374 



bathmic, 374 



Darwin's theory of, 114, 356, 380, 

 417-418 



factors of, 377-381 



organic, 380 



principles of, 361-363 



(inheritance and reproduction), 421- 



425 

 (selection and variation), 372 



Faraday, 30, 31, 34 ftn., 373, 529 

 Experimejital Researches , 1 1 ftn. 

 Fecundity, 465 

 Fertility, 445 

 (gross), 446 

 inheritance of, 462-468 

 (net), 446 

 Fischer, Kuno, Geschichte der Phil- 



osophie, 192 

 Fitzgerald, G. F. , On an Electro-mag- 

 netic Interpretation of Turbulent 

 Fluid Motion, 266 ftn. 

 Flat land : A Romance of Many Dimen- 



sio?is, 268 ftn. 

 Force, as a cause, 116-118 

 definition of, 304 

 materialist's notion of, 119 

 redistribution of, 513 

 resultant, 319 



Tait and Thomson's definition of, 

 246 

 Forces, parallelogram of, 319, 324 

 Frames, of reference for motion, 208 

 Frequency curves, 390. See also Tables 



Galilei, 20, 215 ftn., 309, 326, 529 

 Galloway, T. , A Treatise on Proba- 

 bility, 148 ftn., 151 

 Galton, F., 427, 431, 439, 477, 478, 

 482, 491, 495, 496 



Galton, F. , English Men of Science, 503 



Hereditary Genius, 503 



Inquiries, 503 



Natural Inheritance, 470 

 Galvani, 29, 30 



Geddes, Evolution of Sex, 26 ftn. 

 Gemmule, 335-337 

 Generation, spontaneous, 330,346, 349, 



354. 356 

 Geography, 522 

 Geology, 522 



Geometry, descriptive, 517 

 metrical, 517 

 perspective, 517 

 Germ-plasm, 26 ftn., 329, 336, 337 

 Gladstone, W. E. , 240 ftn. 



The Impreg7iable Rock of Holy Scrip- 

 ture, 114 

 Gravitation, law of, 85-87, 92, 99, 100, 

 121, 135, 281, 294 ftn. 

 force of, 273 

 Green, General Introduction to Hume's 



Works, 192 

 Growth of like parts, law of, 404 



Haeckel, 276, 341, 364, 367, 380 ftn. 

 Freie Wisscnschaft und freie Lehre, 



38, 364 ftn., 370 

 his criticism of Darwinism, 364 

 Natiirliche Schopfungs - Geschichte , 



370 

 Of the Pedigree of Ma?i and other 



Essays, 371 

 On the Development of Life. Par- 

 ticles and the Perigenesis of the 

 Plastidule, 370 

 Haldane, J. S. and R. B. , Life and 



Mechanism, 38 

 Hamilton, Sir William, 537 

 Harvey, Anatomical Dissertation on 

 the Motion of the Heart and Blood, 

 II ftn. 

 Heat, 522 

 Hegel, 16, 25, 28, 244 ftn. 



Philosophy of Law, 80 

 Helmholtz, 269 ftn., 276, 293, 347, 528 

 On the Relation of the Natural 

 Sciences to the Totality of the 

 Sciences, 38 

 Seiisations of Tone, 1 1 

 Heraclitus, 239, 240 

 Heredity, coefficient of, 457, 478 

 coefficient of cross, 481 

 (cross) 454, (direct) 454 

 Darwin's theory of, 334, 335 

 first notions of, 449-454 

 law of ancestral, 475-481 

 quantitative measure of, 454-459 

 Weismann's theory of, 26, 27, 334- 

 337 



