INDEX TO GENERAL EEPORT. 



Page. 



Altitudes, determination of 112-126 



Barometers, defects of -- - 1 1 2 



table of corrections for 113, 115 



Barometric tables in Appendix D, description of 126 



Cache creek . 57 



Calapooya mountains, description of.... -- 34 



railroad pass through .- 49-50 



Camp S, on 'Why-chus creek, description of 90 



Canoe creek, valley of 60-62 



Canon, Klamath river, description of *>8 



Klamath river, railroad character of 44 



lower, of Pit river, railroad character of 42 



Des Chutes river, description of 45, 94, 95 



upper, of Pit river, railroad character of 43 



Cascade mountains, in Oregon Territory, description of 30-33 



itinerary of first exploration among 77-79 



itinerary of second exploration among 79-81 



route of Lieutenant Abbot through 97-101 



Cascades of Columbia, description of 32, 89 



longitude of 13 



Chit-tike creek, caflon of -- — "5 



Columbia river, impracticability of constructing wagon road near 33 



navigation of -- 33 



reconnaissance of - — 88- 90 



width of at Cascades -- - - 89-90 



Dalles of Columbia river, description of - - 8 8 



Des Chutes river, canon of- -- - *•>, 94, 95 



country near head of 73-74 



description of - 28 



entrance of canon (4-75 



Des Chutes valley, general description of - - • - 28-29 



itinerary of first exploration in - -- 83-90 



itinerary of second exploration in 91-97 



Divide between Klamath marsh and Des Chutes river. - - 72-73 



Escort, division of - - 81 



loss of... 102-105 



loss of quartermaster and commissary - - HO 



officers of -- 59, 62 



Fall river, mouth of -- "3 



valley of 128 



Fort Dalles, altitude of 14 



