- 
131 aE 
perhaps, which I would have selected; at the same time there 
was nothing for me to regret, except the absence of a good portable 
. telescope, with which occultations of the fixed stars by the moon, 
and the immersion of Jupiter’s satellites, could have been observed, 
and a few pocket chronometers. : 
We left Washington on twenty-four hours’ notice, and time was 
not allowed to procure either the telescope or pocket chronometers. 
* Ist. We struck the Gila, as the table will show, in latitude 327 
44’ 52" and longitude 108° 45’ west from Greenwich; thence its 
course is very nearly west. As well as we could judge from the 
course of the mountains, its course from that point to its source 
‘was not very far from northeast or southwest. 
No tributaries to the Gila were crossed before reaching it, except 
one named by me Night creek, a very insignificant stream. e. 
Sierra Mimbres, 6,000 feet above the sea at the highest point where 
we crossed it, falls gradually and almost imperceptibly to the 
Gila. 
2d. Your second interrogatory is answered principally, by the 
table of geographical! positions. 2 
‘The Rio Salinas comes in from the northeast, a little west and 
north of camp.97, of November 12. (See table.) This camp, the 
astronomical position of which is given in the table, is about mid- 
way between the villages of the Pimos and Coco Marricopas In- — 
dians. 
3d. The table will show you that the junction of the Gila and. 
Colorado is on the parallel of 32° 43’ or 4'; and, im the absence of 
/more specific information, I would advise you to place the mouth 
of the Colorado on the parallel of 31° 51’, which is the:latitude 
given it by Lieutenant Hardy, of the royal navy, whose little book 
of travels in Mexico you have no doubt seen. fee 
4th. Specimens of the seed of the cotton grown by the Pimos 
“were obtained, but they have not yet reached me. pil é 
; ed ¢ Te 
me Ss 
