300 MR, SPRUCE'S BOTANICAL EXCURSION 
The above list does not include the small riachos, whieh fall here 
and there into the river, nor some insignificant lakes nearly dried up 
in summer. There are also other smaller prayas resorted to by turtle, 
but the three above-named are the principal ones. Above the Lago 
d'Uabuí, the largest of all the lakes of the Trombétas, commence 
the cachoéiras. i 
From the testimony thus obtained, as well as from other sources, I 
am convinced that no large river enters the Trombétas above the 
Cuminá and Aripecurá; and that the “ Cupo” and *Saraguata" 
laid down in Martius's map as entering it from the east, are purely 
imaginary. Even the names are quite unknowu to the dwellers on 
the Trombétas. The great map of Spix and Martius is, however, the 
most perfect I have seen for the bason of the Amazon ; and the direc- 
tion of the Trombétas near its embouchure, is more correctly given in it 
than in the map of the Useful Knowledge Society. In ascending the 
Trombétas our course was nearly due west for at least thirty miles, 
before there was any decided trending to the north. 
The igarapés entering the Trombétas above the Cumina are 
said to all expand into lakes a little way from their embou- 
chures, and the feeders of these lakes would appear to be all slender 
streams, though some of them, as my informant said, “ vao longe pelo 
centro.” : 
January 3.—We spent the night at the Sitio of Santa Cruz, and it 
was a great luxury to sleep once more under the shelter of a roof. 
. This morning started with strong and fair wind, and with current m 
our favour. A little before midday we reached our former halting- 
place at the mouth of the Iripixy, and I devoted a few minutes to a 
meridian observation of the sun, which gave for latitude 1^ 4,8’ S. 
Shortly afterwards the wind dropped; very heavy showers came m 
rapid succession, and found out a weak place in the roof of our tolda. 
No dry paper to-day.. Grievous to have plants turning mouldy under 
one's eyes, and no help for it! It is astonishing how soon specimens 
spoil in this hot and moist climate if not carefully attended to, but 
on the whole we have been very successful, and most of my specimens 
will bear comparison with any I have dried in Europe. At half- 
past seven, P. M., reached Sitio de Quiriquiry, our first stage from 
.. Obidos. 
e January 4.—Spent last night with our old friend Elisardo, and was 
