XXVIII HIDDEN TREASURE 495 
ing correction needed in all the other mountains 
deh'neated/ 
The whole map is exceedingly minute, and the 
localities mostly correctly named, but there are 
some errors of position, both absolute and relative, 
such that I suppose the map to have been con- 
structed mainly from a simple view of the country, 
and that no angles and very few compass-bearings 
have been taken. The margins of the map corre- 
spond so nearly with the actual parallels and 
meridians, that they may be assumed to represent 
the cardinal points of the compass, as on an 
ordinary map, without sensible error. 
The country represented extends from Cotopaxi 
on the north to the base of Tunguragua on the 
south, and from the plain of Callo (at the western 
foot of Cotopaxi) on the west to the river Puyu, in 
the forest of Canelos, on the east. It includes an 
area of something less than an equatorial degree, 
namely, that comprised between 0° 40^ and 1° 33' 
S. lat., and between 0° 10' W., and near 0° 50' E. 
of the meridian of Quito. In this space are re- 
presented six active volcanoes (besides Cotopaxi), 
viz. — 
I. El Volcan de los Mulatos, east a little south 
from Cotopaxi, and nearly on the meridian of the 
Rio de Ulva, which runs from Tunguragua into the 
Pastasa. The position of this volcano corresponds 
to the Quilindana of most maps — a name which 
does not occur on Guzman's, nor is it known to any 
of the actual residents of the country. A group of 
mountains running to north-east, and terminating in 
^ The apical angle of Tunguragua — the steepest mountain I ever climbed — 
is 92^°, and the slope 435''. 
