2 ears 
a aa, . 
‘ Cae 
336 J. D. Dana on the Plan of Development 
In the body of New Zealand, however, and some other parts, 
the angen nrg rend of Kastern America is represented. 
the relation between the borders of the conti- 
= as to soa and structure, and the extent of the oceans? 
. Look first to North ‘America. Observe the ae ae 
lofty Rocky Mountains, mostly a double line of heights, facing 
the broad Pacific, besides a second towering nani the Cascade 
and Sierra Nevada, nearer the sea. May we not say, As the 
height of the Appalachians to the size of the a so ts the height 
ee ree the ence sclot ? 
—— America, there is the same Set Soe low Brazil- 
ountains on the Atlantic rie | the lofty Andes on the 
Pacific, and the latter exceeding the Rocky Mountains as much 
as the South Pacific exceeds the N ae Pacific; so that we may 
make another proportion, As the height of the Rocky Mountains to 
the North Pacific, so is the height and boldness of the Andes to the 
South Pacific. 
In the Orient, the mountains towards the Atlantic, or those of 
which run nearly north-northwest; making thus a great swee curve, of several 
strands, over 6000 miles lo The Sandwich or Newall cing cr the oe side 
of the equator (2000 miles in 1 whole length) is the opposite or northern s1 side of the 
same system, slightly curving with the convexi iy sarge yn e the Marque- 
sas and the e Fanning or Washington ioe 3 lie m tn a axis of this great Cen 
oe 
‘ y and west in the Admiralty Islands, north 
Guinea. The line of New Caledonia, another curving strand in the system, 
pe n New Caledonia and Australia accord with the system. The post 
tion of these lines concentric around Australia co correspond with the idea that the 
Sar fans extent of this continent, has had some influence in determining the 
a, 
two systems, the Central Pacific and Australasian, though so agg ee 
‘yet ¢ bound together in one. For while the great central range ra main co 
Kingsmills and Radack groups, it —_ off at the Kingsmills, a svestern 
branch, the Carolines, which is actually parallel with the jes of the Australasian 
beg ah late of the New —— which is continued in the Frie’ ; Islands 
north, corre! northwestern, the two ha a mutual depen 
Se nati in many groups 0 of islands an well as in the features f the 
Lig ee 
eed Ewer 
