244 



INDEX. 



Electric Telegraph and Lightning, 

 226. 



Electric and Magnetic Attraction, 

 Identity of, 210. 



Electrical Kite, Franklin's, 213. 



Electricity and Temperature, 208. 



Electricity in Brewing, 209. 



Electricity, Vast Arrangement of, 

 208. 



Electricity, Water decomposed 

 by, 208. 



Electricities, the Two, 214. 



Electro-magnetic Clock, Wheat- 

 stone's, 211. 



Electro-magnetic Engine, Theory 

 of, 210. 



Electro-magnets, Horse-shoe, 199. 



Electro-telegraphic Message to the 

 Stars, 226. 



Elephant and Tortoise of India, 

 135. 



End of our System, 92. 



England in the Eocene Period, 

 129. 



English Channel, Probable Origin 

 of, 105. 



Eocene Period, the, 129. 



Equatorial Cloud-ring, 156. 



" Equatorial Doldrums," 156. 



Error upon Error, 1 85. 



Exhilaration in ascending Moun- 

 tains, 163. 



Eye and Brain seen through a Mi- 

 croscope, 41. 



Eye, interior, Exploration of, 236. 



FALL of Bodies, Rate of, 16. 



Falls, Height of, 16. 



Faraday, Genius and Character of, 

 193. 



Faraday's Electrical Illustrations, 

 214. 



" Father of English Geology, the," 

 126. 



Fertilisation of Clouds, 151. 



Fire, Perpetual, 117. 



Fire-balls and Shooting Stars, 

 89. 



Fire-Springs, Artesian, 118. 



Fishes, the most Ancient, 132. 



Flying Dragon, the, 130. 



Force neither created nor de- 

 stroyed, 18. 



Force of Running Water, 114. 



Fossil Human Bones, 131. 



Fossil Meteoric Stones, none, 92. 



Fossil Rose, none, 142. 

 Foucault'sPendulumExperiments, 



22. 



Franklin's Electrical Kite, 213. 

 Freezing Cavern in Russia, 115. 

 Fresh Water in Mid-Ocean, 182. 



GALILEAN Telescope, the, 93. 



Galileo, What he first saw with the 

 Telescope, 93. 



Galvani and Volta, 205. 



Galvanic Effects, Familiar, 203. 



Galvanic Waves on the same Wire, 

 Non-interference of, 225. 



" Gauging the Heavens," 58. 



Genius, Relics of, 5. 



Geology and Astronomy, Identity 

 of, 104. 



Geology of England, 105. 



Geological Time, 143. 



George III., His patronage of Her- 

 schel, 95. 



Gilbert on Magnetic and Electric 

 forces, 201. 



Glacial Theory, by Hopkins, 105. 



Glaciers, Antiquity of, 109. 



Glaciers, Phenomena of, Illus- 

 trated, 108. 



Glass, Benefits of, to Man, 92. 



Glass broken by Sand, 26. 



Glyptodon, the, 137. 



Gold, Lumps of, in Siberia, 124. 



Greenwich Observatory, Chrono- 

 meters rated at, 229-232. 



Grotto del Cane, the, 112. 



Gulf-Stream and the Temperature 

 of London, 115. 



Gunpowder - Magazines, Danger 

 to, 216. 



Gymnotus and the Voltaic Bat- 

 tery, 206. 



Gyroscope, Foucault's, 22. 



HAIL and Storms, Protection 



against, 159. 



Hail-storm, Terrific, 160. 

 Hair, Microscopical Examination 



of, 41. 

 Harrison's Prize Chronometers, 



229-232. 



Heat and Evaporation, 188. 

 Heat and Mechanical Power, 188. 

 Heat, by Friction, 189. 

 Heat, Distinctions of, 187. 

 Heat, Expenditure of, by the Sun, 



186. 



