APPENDICES. 591 
to acquire information as far as you may be able, without is en the 
main objects of the Commission. 
After you have traced the boundary to the junction of the Gila with 
the Colorado, you will be compelled to retrace your steps to El Paso, 
Before doing this, as you will possess many facilities for the purpose, 
you are at liberty to proceed up the Colorado River, and make such ex- 
plorations as your time and facilities will permit, provided the boundary 
survey is not arrested in so doing. 
The discovery of more practicable routes through California for emi- 
grants, is desirable. The present routes, by way of the Great Salt Lake 
and the River Gila, are attended with many difficulties. If a portion of 
the Commission can be spared, with an adequate escort, to seek such 
routes, while it is in their vicinity, you are at liberty to employ them. 
As it is indispensable that each government should be furnished with 
a full and circumstantial record of the proceedings of the Commissioners, 
they will doubtless order such to be kept in duplicate. This duty will 
devolve upon the clerks or secretaries appointed on both sides, who will 
be responsible for the accuracy of such records, and for their safe deliv- 
ery, properly certified, to the saggy governments, at the expiration of 
the Commission. 
As soon as the boundary shall ies been ascertained and marked, 
you will cause a true and accurate map to be made of the country 
through which it passes, in its entire extent. A duplicate copy of said 
map, certified by the commissioners and surveyors on both sides, should 
accompany the records of the proceedings of the Commission. 
The joint report of declaration by the commissioners “ of the final 
result agreed upon by them,” under the fifth article of the treaty, will 
also be transmitted to the department, to be filed with the journal or 
record of their proceedings and the maps. 
Your salary as commissioner, which has been fixed by Congress, at 
three thousand dollars, will commence on the fourteenth day of June 
1850, the day of your appointment by the President, when you were 
ordered to report yourself for duty to this department. Under the head 
of contingent expenses of the Commission, will be embraced your rea- 
sonable personal and travelling expenses while in service, and those of 
the principal surveyor, chief astronomer, and other officers of the topo- 
graphical engineers and navy who may be detailed to assist you in the 
field, or otherwise; the pay and subsistence of assistant surveyors and 
