. The polar and tropical worlds [microform] : a description of man and nature in the polar and equatorial regions of the globe : two volumes in one : embracing also an account of the expeditions of all the Arctic explorers from the discovery of Iceland, over one thousand years ago, to Hall's last expedition in the northern world, together with the wonderful discoveries and adventures of Agassiz, Livingstone, Wallace, and other distinguished travelers in the tropical countries. Arctic races; Tropics; Natural history; Races arctiques; Régions tropicales; Sciences naturelles; genealogy. SIBEIJIA
. The polar and tropical worlds [microform] : a description of man and nature in the polar and equatorial regions of the globe : two volumes in one : embracing also an account of the expeditions of all the Arctic explorers from the discovery of Iceland, over one thousand years ago, to Hall's last expedition in the northern world, together with the wonderful discoveries and adventures of Agassiz, Livingstone, Wallace, and other distinguished travelers in the tropical countries. Arctic races; Tropics; Natural history; Races arctiques; Régions tropicales; Sciences naturelles; genealogy. SIBEIJIAâFUK-T1{ADE AND (iOLl)-DIUGIX(iS. soo iiliiin slantinj? to the nortli; moreover, it is situated iit siicli :i .listanco from tho Atluiitie, lluit boyonil the Tral the western sea-winds, Mliicli brin^' wanntli to our winters, assume tlie cliaraeter of (â¢(iM land-winds; and, linally, it merges i,i tlie south into tiie high 3Ioi>goIi- ;ui ]ihiteau, whicli, situated 4000 feet alidve th(! level of tho sea, has of ceiuse b\it little warmth to impart ti) it in winti'r; so that, from what- ever side tho wind may blow at that si'iison, it constantly eonveys cold. but in summer tlio scene midergoes a tiital change. Under the inllueiico of tlie sun circling for months round the North I'olc, iloods of warmth are jiDured into Central Siberia, and rap- idlv cause the thermometer to rise; i!0 neighboring sea refreshes tho air uitli a cooling breeze; whether tho wind c(jme from the heated IMongoliau ilcserts, or sweep over the Siberian plains, it imljibes warmth on every : side. Thus the terrible winter of J a- ; kiitsk is followed by an et7//u«), which closely resembles tho pine-marten (Miu'tts abktum) in shape and size, deserves to be particularly noticed, both for tho beauty of its pelt, and its iiiiportance in tho fur-trade. Sleeping iiy day, tho sable hunts his ])rey by iii;4lit; but though he chiefly relish- es animal food, sucli as liaros, young hinls, mice, and eggs, lie al
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