EARTH AND LAND 



17 



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E 



C 



T 



I 



O 



N 



III 



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R 



A 



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A. 



N 



O foil appears on Southern Georgia, except in a few strata 

 crevices of the rocks ; all the refl is a ponderous Hate which 



fome irony particles, lies in horizontal fir 



rly fo 



and is here and there perpendicularly interfedled by veins of quartz. 



The rocks of Tierra del Fuego near the fea, are of the fame nature 

 and have on the higher parts, coarfe granite rocks. fSaxumJ 



The Southern ille of New Zeeland which we vilited in two 



i 



different places, is on its furface covered with a ftratum of fine 

 black light mould, formed of putrified moffes, deciduous leaves, 

 and rotten trees {humus dee dale a & ruralis^ Linnaei.) This flratum is 



r 



in fome places about ten or twelve inches thick, but in general not fo 

 deep ; under it we found an argillaceous fubflance nearly related to the 

 clafs of talcous flones, which is turned into a kind of earth, by be- 

 ing expofed to the action of the fun, air, rain and frofb, and is of va- 

 rious thicknefs : flill deeper the fame is indurated into flone, run- 

 ning in oblique flrata dipping generally to the South : their hardnefs 

 varies confiderably, for fome of the mofb indurated and compad: will 



r 



Their colour is generally a pale yellow, fom.e- 



ilrike fire with fleel. 



D 



t.mes 



