APPENDIX. 515 



Mr. Rodgers will also accompany you, as interpreter, caterer, &c. ; 

 he having been engaged by me for that purpose, for the explanation 

 of the district pointed out to you on the accompanying map. 



Your arrangements will be completed as early as possible, and you 

 will be careful that the organization of your party is complete, and 

 that they maintain a due obedience to your orders and authority during 

 this service, for on it will depend their safety. 



I cannot too strongly impress upon you the necessity of constant 

 watchfulness and caution, in the steps you will pursue, and of acquir- 

 ing the information necessary to enable you to judge for yourself. 



It is desirable to avoid all collision with the Indians, if possible, 

 without, however, showing them that you do so ; and if unavoidably 

 attacked, you must not only repulse them, but punish them, as far as 

 may lay in your power, exercising due discretion. 



The men whom Mr. Rodgers is to engage at the Willamette settle- 

 ment, will require of you particular attention. You will know their 

 terms of engagement : for the performance of which, and their good 

 behaviour, their pay will be made answerable. 



You will observe strictly the following instructions: 



1st. The route I have pointed out to you is believed to be feasible, 

 but as the country is unknown, it may not be so. You are not at 

 liberty to depart from it, however, without good and sufficient reasons. 



You will, however, particularly note : my object is to get all the 

 information respecting the district I have marked in red, and you will 

 endeavour to get this as accurate as possible, by travelling over as 

 much of its surface as your time will admit of. 



2d. Your absence is limited to the 10th of September, and I am 

 convinced that much knowledge may be gained of the district pointed 

 out to your party in that time. 



3d. Observations for latitude and longitude wherever you may 

 encamp. 



4th. You will keep an accurate map of your route, noting on it all 

 lakes, rivers, plains, mountains, and every thing worthy of notice, to 

 illustrate its features. For this purpose, furnish yourself with a blank- 

 book of foolscap size, and use each leaf for a day's work ; the ruled 

 places will answer the purpose of a scale, and be sufficiently large to 

 insert every thing desirable to note. 



5th. You will be furnished with a pocket chronometer, sextant, 

 artificial horizon, prismatic compass, barometer, thermometers, Nau- 

 tical Almanac, and Book of Tables, which will enable you to obtain 

 all kinds of observations ; and I shall expect you to be very particular 



