446 



Massaruni River, navigated, 184, 185. 



Mastodons, elephantine, 222. 



Matter, vital force of, afh'nitive and re- 

 pulsive, 383 ; various combinations of, 

 384,385. 



Mauritia-palms of South America, 12; 

 useful and nutritious properties of, 

 13. 135,136. 



Maypnres, cataracts of, 153 et teg. ; 

 general account of the waterfalls of, 

 1 62, et teq. ; missionary village of, 

 163; Parrot of, 172. 



Mediterranean, great catastrophe by 

 which it was formed, 216, 262-205 ; 

 Strata's account of, 263. 



, three peninsulas of the, Iberian, 



Italian, and Hellenic, 265 



Medusa hysooella, electric light struck 

 from the, 249 



Mehemet Alt, his exploring expeditions 

 to the Mountains of the Moon, 117. 



Melastomaceae, 160; one of the vegetable 

 forms by which the aspect of Nature is 

 principally determined, 229, 346. 



Melocactuses, the, 15, 138, 226; vegeta- 

 ble springs, 312. 



Meta, whirlpool and rock at the entrance 

 of the, 161. 



Mexican Gulf, rotatory stream of the, 

 121-124 ; coral islands in the, 256. 



Mexico, plateau of, its elevation, 58; 

 elevation of, in the equinoctial zone, 

 208; general elevation of, 209; the 

 Coniferae and oaks of, 315 et tsq. 



Microscope, wonderful discoveries of the, 

 211. 



Migrations, through northern Asia to the 

 western coast of America, 11, 181. 



Mimosas, the stepp- of South America 

 covered with, 16, 216; one of the vege- 

 table forms by which the aspect of 

 Nature is principally determined, 224 ; 

 the habitat and natural history of, 

 307, 308. 



Mirage, deceptive appearances of the, 

 13,137. 



Mississippi, its sources and elevation, 39; 

 the forest, prairies of, 40 ; temperature 

 of the valley of the, 102, 103. 



Missouri, deposits of the, 38. 



Moeris, Lake, probably once connected 

 with the sea, 244. 



Mollusca, marine luminosity of the, 

 246, 247 et seq. 



Monad, question respecting the, 24 * 



Mongolian Steppe, in Central Asia, 4, IP 



Monkeys of South America, cries of. 199 

 203." 



Monocotyledons.numerousspe cies of. 2 1 3. 



Moon, natural representations of, 165. 



, Mountains of the, 9; disquisit- m 

 on, 114, 115. 



Mont Blanc, 210. 



Monte, the term, in Spanish, applied but ft 

 to mountain and forest, 194. 



Monte Video, situation and temperature 

 of, 104. 



Nuovo, in the Peloponnesus, 356. 



Mouflon, the long-horned, of South Ame- 

 rica, 11. 



Mountains, of South America, system of, 

 30, 31 ; plan for measuring the heights 

 of, 33; vast range in North America, 

 35-38; the Cordilleras the longest 

 chain in the world, 42, 43 ; plateaux 

 of Asia, 53-62 ; table of elevations, 

 58; general view of the great moun- 

 tain chains of Asia, 63-73; on the 

 snow-lines of, 73 et seq. ; masses of, in 

 South America, 84; numerous terms 

 for, in the Castilian dialects, 191, 202 ; 

 the names of, derived from the most 

 ancient relics of languages, 236 ; trans- 

 parency of the atmosphere of, 238 ; 

 process of their formation, 262. 



Mule, instinctive cunning of the, for 

 allaying his thirst, 1 5. 



Musk Ox, of South America, 11, 125; of 

 the Mississippi, 40. 



Muyscas, the ancient inhabitants of New 

 Granada, 425 ; civilization of, 426. 



Mylodon robustus, 222. 



Myrtace (Myrtles), 179, 280; of Aus. 

 tralia, 312 ; one of the vegetable forms 

 by which the aspect of Nature is 

 principally determined, 229, 343-345. 



Mysore, plateau of, its elevation, 58. 



NAIADS, the, 213. 



Nations, characteristics of, formed by 

 climate, 219. 



Natron Lakes, of Egypt, 44. 



Nature, the study of, conducive to intel- 

 lectual repose, 21 ; her powerful influ- 

 ence in the regions of the tropics, 154, 

 215; the life-springs of, ever prolific 

 and eternal, 173; the many voices of, 

 revealed in animal existent e,200-201y 

 periodic stagnation of 215 ; great con- 

 vulsion of, in the Mediterranean, 218 



