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Se is aia 
J. Orton on the Andes and Amazons. 209 
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‘ Overlooking the irregularities between ee and Obidos, 
_ I think my barometrical observations across the continent 
faithfully delineate the main features from Guayaquil to Para. 
We see a striking difference between South America and our 
own continent in the fact that while Tabatinga, the half-way 
station, is not over 255 ft. high, Fort Leavenworth at the same 
lance from the sea, is six hundred feet above it. I will here 
notice a curious coincidence (it can be nothing more) in the 
relation between the eastern profile of a continent and its sec- 
tion, Thus, the eastern coast line of the American continents 
is a rough copy of the line describing the surface from west to 
east. In the eastern hemisphere, the eastern contour more 
nearly approximates a section from north to south ; and there 
South America, the protuberance of Cape St. Roque represents 
the Swell of the Andes ; the slope thence to Patagonia is 
40 imitation of the Amazonian valley ; while the upw 
turn of oa rene del Fuego fered us of the low Bra- 
: zilian moun 
semen of the barometer—These occur with 
winds, sudden 
oe 
7 
es 
Be 
eS. 
ee 
SPOR WEN ae tee 
its at the same hours (10 a. and 4 p.m.) asin the high 
T The hour of the day may be determined by “ 
eee at Quito within 15 minutes. The mean daily am 
i oe oe 
A Garg is ‘091 (Vin, 147; Dakoniioan, *145.) 
“08 :) 
isse, "090, 
5 « Pebas, 
Para, 088 
| * 
en found at St. Helena that the mercury was -004 in. mera when = 
‘ a The dneins the meridian above ond below the “ene 
lowest at 9 4. a. sesh Maghaed est at 3 P. art 
and that Cap t. Parry no 
aad. niin: in _ 74°. Dr. Hayes found the maximum at t Port Foulke ona, 
