IXDEX. 



195 



Jardin. description of, 53. 

 Juugfrau, 136, 137. 



K 



Killarney, luxuriant vegetation of, 2T. 

 151. 



L 



La Grande Jorasse, crests of, 43 ; roses 

 oi cloud aboat, 90. 



Lake of Geneva, an expansion of the 

 river Rhone, 6. 



Latent heat, 153, 167. 



Lateral moraines, origin of, 54. 



Light, wave-theory of, 10, 11 ; inference 

 from the phenomena of, 11 ; length 

 of wave of, 12. 



Likeness of glacier-motion to river-mo- 

 tion, 72-76. 



Liquefaction of ice, 168, 169: experi- 

 ment by Mr. Botioruley. 170 ; experi- 

 ment by Mr. Boussingaiut, 170, 171. 



Locus of the point of swiftest motion, 

 76. 



Longitudinal crevasses, how formed, 

 109; examples of, 110. 



M 



Magillicuddv's Reeks. 27. 150. 151. 



Magnet, poles of. 32 ; repelling corners 

 and ends of. 126. 



Margelin See. 138 : icebergs in the. 138. 



Maro-inal crevasses, explanation of, 106- 

 109. 



Mauvais Pas. 41. 



Measurements of glaciers by Hugi and 

 Agassiz. 59. 60. 



Medial moraines, how accounted for. 55. 



Mer de Glace, 41 : its sources, 43-45 : view 

 of the. 44: b ranching of the. 45: me- 

 dial moraines of the. 51. 52: triangu- 

 lation of. 62 : motion of, 66. 70 ; daily 

 motion of, 67: unequal motion of the 

 two sides of. 70-72 ; motion of axes 

 of. 78: summer condition of. 87; 

 winter on. 88-92: dirt-bands of. 127; 

 dimensions of, 145: winter motion 

 of. 93 : greater number of crevasses 

 on eastern side of. 112; glacier ta- 

 bles of. 113: grand moulin of. 117, 

 118 : approximate weight of. 154. 



Molecules, of water. 31. 34: expansion 

 of. 125 : force? acting upon. 127 ; ex- 

 elusiveness of water. 132. 133. 



Montanvert. auberge of the, 41, 43; 

 appearance in winter. 89. 



Moraine, lateral. 41: medial moraines 

 of the Mer de Glace. 51. 112 : cedars 

 of Lebanon growing on ancient, 150; 



explanation of the cause of ridges 

 on, 112. 113. 



Morteratsch glacier, cause of the widen- 

 ing of the medial moraine of. 97 ; mo- 

 tion of, 95, 96 ; sand-cones of. li6. 



Motion, of Mer de Glace, 93 ; of Grindel- 

 wald. 94; of Great Aletsch glacier, 

 94 : of Morteratsch glacier, 95 ; sand- 

 cones of, 116. 



Moulins, description of, 116: dangers 

 from, 117 ; sounding of, 118. 



Mountain condensers, 27, 150. 



N 



Neve, explaration of term, 49; stratifica- 

 tion oi the. 179. 



Obliquity of the lateral crevasses, 167 ; 

 illustration, 107, 108. 



Petit Plateau. 56. 



Piz BerniL-a. route to. 95. 



Place de la Concorde of Nature, 1?6. 

 I Plastic theory. 156: advocated by Bor- 

 dier, 157 f advocated by Rendu, 158. 



Poles, atomic. 32, 126 ; attractive and re- 

 pellent. 30. 



Pontresina, village of, 95. 



Precious si ones, examples of crystalliz- 

 ing power. 30. 



Precipitation. 23. 25: atmospheric. 27. 



Promontory of Trelaporte, 44 ; of Tacul, 

 51. 



Proofs of glacier-motions. 58. 



Pyramid of Aiguille du Dm, 43; of 

 Aiguille des Charmoz, 43. 



Q 



Quotation fyom Rendu, 158 



R 



Rain, its source, 3; tropical, 23. 25. 



Rainfall, observations on amount of. 28. 



Regulation, theory. 163-167; observations 

 made by Mr/ Faraday, 164; forma- 

 tion of chain of icebergs by, 165; 

 cause of, 167; Faraday's view of, 

 171-176. 



Relation of structure to pressure. 183 ; 

 veined structure described by Guyct, 

 183-185: illustration, 186 ; connection 

 established. 187. 



Retina, how excited, 8 ; theory of Sir 

 Isaac Newton. 9. 



Riffelberg Hotel, location of. 144. 



Rivers, their sources, 1, 7, 19. 



