678 REVIEWS AND BOOK NOTICES. 
northern. Its highest point is about 850 feet above the level of 
the sea, and it appears to differ entirely from Ereré in its geological 
structure. The view from the summit extends over an immense 
area, the entire Ereré-Monte-Alegre highlands and the Devonian 
plain being in sight. 
Fig. 97. 
m 
i b 
r = ae 
=-_ M Soca, et RRL =» 
am = r 
‘2 
o eee 
4, 
The Devonian Plain and Serras of Ereré from the Serra of Tauajurt. 
The description of the table-topped hills to the eastward of 
Monte-Alegre, which have been the subject of much discussion, 
we copy verbatim: 
‘‘ The table-topped hills of the Amazonas, so frequently described 
by travellers, consist of several isolated mountains or plateaus of 
circumdenudation composed of horizontal strata, which lie on the 
northern side of the river between Prainha and Almeirim, and 
known collectively as the Serras of Parú. They are characterized 
by their flat level tops and their very abrupt, sometimes precipitous 
eastward of which is that of Velha Pobre, while still farther east 
are the Serras of Almeirim. The general appearance of a 
mountains is represented in the following sketch made from the 
river,” 
Fig. 98. 
Serras of Parú from the Amazonas. 
“The serra of Parauáquára is distant, as nearly as I car judg 
about twenty miles to the eastward of the fazenda”. (of aa 
Rodrigues on the Igarapé of Marapi). ‘It is an extensive, İso noe 
plateau of cireumdenudation, and apparently forms a long, wi akoi 
irregular strip, running east-west. The following sketch, topo- 
from a point a few miles west of the mountain, will show its 
phical features as seen in elevation.” 
: Sees a e 
AD eee ele S eee yee eet 
