THE 
TASMANIAN JOURNAL 
OF 
NATURAL SCIENCE. 
LJ’ 
Art. I. A few Remarks on the Nomenclature and Clas¬ 
sification of Rock Formations in New Countries . By 
J. B. Jukes, M.A., F.G.S. 
Humboldt in his “ Personal Narrative” remarks, that a 
traveller in distant countries, however the climate, the 
nature of the vegetation, and the characters of the 
animals may vary, finds in the rocks none but old ac¬ 
quaintances,—that granite, gneiss, slate, and sandstone 
are the same in every portion of the globe. This remark is 
perfectly correct so far as the mineralogical or litholo¬ 
gical characters of rocks are concerned: not only the 
rocks just named, but limestone, clay, basalt, and all the 
earthy masses to which the term “ rocks” is given by 
the geologist, afford in all countries many varieties in 
texture, hardness, colour, or other qualities, but rarely 
have any character peculiar to one country or portion of 
the earth in particular. That peculiar variety of lirae- 
VOL. II. no. vi. 
13 
