INDEX TO GENERAL REPORT. 



Page. 



Altitudes, determination of _ ._ 112-126 



Barometers, defects of 112 



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-elms creek, description of 90 



Canoe creek, valley of 60-62 



Gallon, Klamath river, description of 68 



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, cafion of - 85 



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 



Des Chutes river, caiion of - -- 45,94,95 



country near head of -- 73-74 



description of - 28 



entrance of canon - 74-75 



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 - -- 



officers of 59,62 



Fall river, mouth of 



valley of 128 



Fort Dalles, altitude of... 1* 



