530 



INDEX. 



Hertz, elecrro-mairnetlc theory of 

 light, 166; theory of electricity, 

 103. 

 115. 



il Alxander. quoted. 804, 458,468. 

 , 298, 414 : development of nerre- 

 cell., 806 ; Un*re Korper/orm 

 (1878), 878. 



Hlsinjcer, 187. 



HttBic. 804, 810. 



Hoche, on Neuron-Theory, 809. 



Hodge, fatigue of nerve-cells, 80S. 



H.. flicker and Sadler, 891 



HolTininn, 258. 



Holcombe, 155. 



Jomogeny and homoplasty, 888. 



Homology. 887, 874. 



Hopkins/835. 



Hoppe-Seyler. 800. 



Horsley, 804, 810. 



Huggins, Sir William, 186, 196, 818 : 

 quoted. 196, 200, 221, 223 ; origin 

 of nsbniss, 223 ; spectroecopy, 

 219 : stellar spectroscopy, 8lf 



H-ICI. .'.' 



Humboldt, Alexander von, 89, 805. 

 85*. 854, 877 ; on the influence of 

 the environment, 510. 



Hntchlns, 816. 



Hutton. 896. 880. 841. 857: quoted, 

 891 ; earth-sculpture. 850. 



Huxley, 886, 858. 427; quoted. 140 ; 

 germ layers, 874 ; paUBontotogy, 

 5*5 ; physical bases of Ufa, 8S7, 



tybridSilon, 894. 

 ybrids. 410. 



Hydrosphere, of the earth, 876. 

 Hypothesis, 178. 



lee- 



r. 811. 



of geological rsoord, 



Imponderable matter. 148. 

 lo-brMdimt, 894, 440. 

 IndMtructtbillty of matter, 114. 

 InerKa, 174. 

 Inheritance. 897. 



lohrlt*nr. ancastral.411 ; blendM. 

 407; dual nature of, 404; mul- 



tiple, 405, 409 ; participate, 407 ; 

 physical baMS of , 89, 440 ; so- 

 cial. 415; unilateral, 406. 



Inheritance, degrees of complete- 

 ness In expression of, 405. 



Inheritance of acquired characters 

 or modifications, 413. 



Inheritance, of fecundity, fertility, 

 and longevity, 406. 



Instinct, 456. 



Integration, 840. 



Internal secretions, 296. 



Inter-relations of things, 16, 277. 



TlBlMllnii theory, 129. 



Ions, 119, 189. 



Irmisch.838. 



iMlstioi/, factor in evolution, 4M. 



lnoineriiiti, 100. 



Iioinorphhini, 274. 



Isotherms, '^77. 



J. 



Jahn, 



James, Alex., cell -division, 888. 



Jenkin, Fleemlng, 489. 

 Jenning*. brhavionr of Protosos, 459. 

 Joly, 244 ; AM of the earth, 888. 

 Joule, 98. 1%, 146, 170; on light. 154; 



mechanical equivalent of neat. 



114, 140; Ttiocfty of particle* of 



a gas, 147. 



Kant, 400, 418. 



K ,-v mm m 



Keane, oa man's 



origin, 470 ; on races of" man- 

 kind, 484; on Hasstfioatkw at 

 human races, 485. 



Keasbey, on origin of human soci- 

 ality, 517. 



KsksXW 



Kelvin. Lord. 810; age of earth. 87, 

 848; dissipation of energy, 4W; 

 grained structure of mat tar. 178; 

 theory of Vortex-Atoras, 167. 



Keatner, 101. 



Kielmnyer, 876. 



Killiui. tonsils. 899. 



Kinetic theory of gases, 68, 8t, 147, 



Klrchhofr, 817. 

 Kirrhh..ff : law. 811, 816. 

 Klanroth. 94. 98, 

 Klebs, experiments, 8M. 



utUkri^.M. 



Kl-lrimibei 

 Kn**.Jrk, 



