Ex. Doc. No. 41. 121 



ject. The instruments. with which I was furnished were not tho&e', 

 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, 

 afid 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 32' 

 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. The 



Sierra Mimbres, 6,000 feet above the sea at the highest point where 



^Te crossed it^ falls gradually and almost imperceptibly to the 

 Gila, 



2d. Your second interrogatory is ans-wered principally by the 

 table of geographical positions. 



The Rio Salinas comes in from the northeast^ a little \vest 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- 

 day between the villages of the Pimos and Coco Marricopas 

 Indians. . . . 



3d. The table will show you that the junction of the Gila and 

 Colorado is on the parallel of 32= 43' or 4'}. and, in the absence of 

 Diore 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. 



4th. Specimens of the seed of the cotton grown by the Pimos 

 "^ere obtained, but they have not yet reached me. Overcoming 



e had in view when we passed the 



s and collections were necessarily hasty 



and superficial. We "passed with them only the part of a day, 

 ■^hereas, if exploration alone had been the object of our party, I 

 should have considered a week as little enough to have devoted to 

 this interesting people. When I left California, it was as a special 

 envoy to the government, and on so short a notice that many of my 

 collections and notes were left behind, with my assistants. 

 Among the things so left, were the seed of the cotton. 



J^Iost of the plants collected, however, were brought home. 

 Anese will show a very complete history of the botany of the coun- 

 ty- They are in the hands of Doctor Torrey, who is preparing 

 f!^ elaborate catalogue and drawings of those plants, heretofore un- 

 Known. This catalogue I should be very- glad to place at, the 

 'lisposal of your society. ^ ^ 



,_^te Coco Marricopas Indians come from the west. So late as 

 i«26, Mr. Kit Carson, one of our guides, met these people at ihe 

 »iouth of the Colorado. Subsequently to that period, they were 



space was the great object w 

 ■l^imos, and our investierationj 



