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War Department, 
‘ Washington, “December 15, 1847. 
Srr: In Domiplifice with a resolut of the Senate of the 9 
instant, requiring the Secretary War to communicate to th 
Senate “a copy of notes of a pinvary ngconppisagsive of the route e 
from Fort Leavenworth, in Missouri, to San Diego, Jalifornia, i 
by Lieutenant William i. Emory, of the topographic engineers, 
with a map of the Bere route and of the Arkansas, Del Norte, and ~ ‘_ 
Gila rivers; the report of Colonel P. St. George Cook’s 
route to California, after diverging from the track’ of General — 
Meaty, I have the honor to submit herewith a report from the 
of the corps of topogeabical engineers, with the copies re- 
ie 
| ‘ie ed bythe resolution a 
Sheed s respectfully, your obedient servant, 
Ww. L. 
RC¥y@ 
Secretary ae Worn 
Helio. M. Datu 
ea 
-Buneav © OF ToroenaPmreas ENGINEERS, © “ ae 
€ Washington, December 15, 1847, ee 
: Ss, a a 
Sra: In obedience to your ordert I have the’ rT to submit t th 
report of First Lieutenant Emory, corps ee ical enginee 
of his reconnoissance 01 the te from Fort Leavenworth, 
Minenat, to San Di oes n California pros a reply to a resolution 
followed by Generah Ke , from the “valley of the “ Del Norte?” 
{o a point on the ‘ Gila,” | 
Lig tenant Emory’s map, sent with 
his report, and founded, as t will show, upon numerous: 
carefu! and well digested sate pienteol observations, is the origi- 
nal. We have not had time to make a copy. I hope, therefore, 
whi the origma will be returned to the archieves of this office, to 
ich ‘it belongs, — A copy willbe made in'time for the, engraver. — 
This nme Se also afford oppepnnity to revise the map. (There 
also danger, if the original goes into the hands of the artist, that 
it will be defaced and paseusls injured. 
The numerous sketches and dr wings referred to in a baat) s re- 
port are retained in the o = 
Senate. @These are slag origins 
