344 



INDEX. 



Hooker, William and Joseph [Bota- 

 nists], 115, 141. 



Hopkinson, 254. 



Horrocks [Astron.], 199. 



Horse (Pedigree of), 135. 



Hospitals, 47 (note), 305. 



Hucbald, 51. 



Huggins,his Spectroscopic Studies, 

 252-255. 



Humane Influence of Science, 286. 



Human Ingratitude, 293. 



Humanitarian Age, 273. 



Humanity (Spirit of), 307. 



Humboldt (A.) [Sociol.], 156,282; 

 [Geol.], Founder of Meteorology, 

 162 ; on Utility, 3. 



Humboldt (C.W.) [Philologist], 151. 



Huntsman, 263. 



Hunt (Dr. J.) [Anthropol.J, 151. 



Hunter [BioL], 127, 273. 



Hutton, 49, 273. 



Hutton [Geol.], his Great Idea of 

 Law, 160; Plutonian Theory, 160. 



Huxley [BioL], his Immense Ser- 

 vices to Science, Pedigree of 

 Birds, his Works, 145. 



Huygens [Astron.], 199, 272 ; 

 [Math.], 193 ; [Physicist], Mi- 

 crometer, Pendulum and Pendu- 

 lum Clocks, Undulatory Theory, 

 Ether, 217; Double Refraction 

 and Polarisation of Light, 218. 



Hydraulic Press, 192. 



Hydraulics, 60,61, 101 ; Definition 

 of, Appendix A A. 



Hydrodynamics, 194 ; Definition of, 

 Appendix AA. 



Hydrogen, 174. 



Hydromechanics, Definition of, Ap- 

 pendix AA. 



Hydrometer, 37. 



Hydrostatics, 23, 36, 61, 101, 192, 

 216 ; Definition of, Appendix AA. 



Hygrometer, 62, 228, 241. 



Hypsometer, 228. 



Hyperbolical Sinus, 194. 



Hypothesis, Evolutionary, 157. 

 Meteoritic, 214, 253. 



Nebular, 209. 



Hypothesis, Single and Double 

 Fluid, 221. 



ICE Age, 167. 

 Calorimeter, 226, 242. 

 Machine, 242. 

 Iceland Spar, 217. 

 Idea of Law, 272. 



Identity of Lightning and Elec- 

 tricity, 221. 

 Ilkanic Tables, 34. 

 Inch, Division of, 263. 

 Incommensurability of the Circum- 

 ference, 194. 

 Increase of Population, 292, 298. 



Wealth, 263. 

 India, 54, 137 (note). 

 Indian Numerals, 33, 42. 

 India-Rubber, 186, 268. 

 Induction, Aristotleon, Appendix 1 1. 

 Brewster on, Appendix 



V. 



Leonardo on, 104. 

 (Electric), Theory of, 



238. 



Inductive Method, 10, 55, 57, 78, 

 98, 104, Appendices 

 II. and V. 

 Process of Research of 



Aristotle, 10. 

 Process of Leonardo da 



Vinci, 104-107. 

 Industrial Spirit, 300, 301. 

 Industries, Benefits from, 292, 293. 

 Industry (Dye), 186. 



in Islam and Christendom, 



45- 



Infinitesimal Calculus, 195. 

 Influence of Science on Belief, 288. 

 ,, in the Moral 



Sphere, 304. 



on Philan- 



thropy, 305. 

 on Religion, 



301-303- 



on Religious 



Government, 301 303. 



,, on the Social 



System, 298-301. 



