RISE AND FALL OF THE COLUMBIA RIVER. 615 
request to take the amount of deposit every month; and if circumstances permit, shall take 
observations of the river during the winter freshet, and also next spring. 
Yours truly, 
JOHN D. BILES. 
Gerorce Gisss, Esq. 
Observations of Columbia river during the freshet commencing May 8, and ending July 20, 1854; by 
ao : COU aaa Sais Bp eH) 
John D. Biles, Fort Vancouver, Washington Territory. 
Z = — 
Hour. Date. Rise. Fall. | Temperature | Temperature Remarks. 
of air. of water. 
| Peek st | ees (Oremrme ert el 
Inches. Inches. ) ° 
Bi AG Miscnee May 8 PL igadececesce ose 41.5 40 Water very muddy. 
se 9 i aceeetateteteicice telat 42 41.2 Do. 
“a 10 Sea EES oencnt sete 42.5 41 Do. 
‘ 11 4§ =| ---- ------ ---- 43 42.5 Do. 
© 12 A Nnespecaneaose 42.5 | 41.2 Water clearer. 
“ 13 Figs Ae eas 42.9 ANS 
“ 14 7S, | ae eS SE 44 43,1 
i 15 ie ee aemeeon eons 45.5 44 
“ 16 Are Wl Peec tard setters 46.5 AA, 
“ 17 Aigemees (Comets es 0s 4G 43.75 
“ 18 Aves (aiiecce sates 45.5 44 
a 19 Be | eeeersomece ence 48 46.5 
u 20 CPi \lnesenccoogeess 48.5 46.2 Water muddy. 
ee 21 5§ | ---=.ee--- ween 47.5 44,75 Do. 
a 22 yO ee Seenonas tage 48 46.75 Do. 
6 23 Bhi Heese cecces-nace Wao 45.75 Do. 
as 24 4) sek coe boercses 47 44.5 Do. 
st 20 Py Nesecececoocose 47.5 45 Do. 
ie 26 BJ Nees anoocnecer 46.5 45 Do. 
ce 27 Be ecco coocesesee 47 45.5 Do. 
wy 28 Pe Wesedcscose coor 49 46 Water clearing. 
ce 29 De el bee nercan Bare 49.5 46.5 Do. 
ue 30 Sh Pulesstecoescore 50 47.5 Water clearer. 
se 31 Oy iscee neces cose 50.75 48 Do. 
June 1 af kessoonsbedeses 51.5 49.2 Water very muddy. 
Gi 2 DN) Wieceeercscmacs 50.5 49 Do. 
oe 3 jl eeeetbSacoeace 50 48.5 Do. 
. 4 ae ee Saneaneenoce 49.5 48 Do. 
of GS losis co ao cdos||soeecopneocoss 49 48.5 River at a stand. 
ss Oo leeris peceoc col opoacnepes.coeo 49.75 47.75 Do. 
ue We |seeaeacjeess | 48.5 46 Commencement of fall. 
ms Chg ese aaseoes 3h 47.5 45,75 Clearing. 
9) | eee ereeet 43 48 46 
me UK Seeecccamecn 35 47.5 46.5 
st DY || eo aeeeayaan'. 5 46.5 47.75 
cs Le eeetee eee 64 46 45.5 
“ 13 |e eee 8} 47.1 46 
o A eee 34 48.5 47.75 
Mi 15% | eeeeenmetaee 1 49 48.3 
3 MG ese oc ocooca||>o soca cosoecas 50.5 49 River at a stand. 
ty Ulf Wace cece nood||semecocese.cacs 51.5 50.5 Do. 
ue Th Weceecoce case 4 5] 49.75 Fall. 
« TY Waseca ecesecos|soreco Aose.psod 52 50.5 River at a stand. 
20 BO Ncosdécecbactasss 52.5 51.75 Commence to rise. 
be 21 1% Retene -socccna 52 50.5 
“ 22 Sue Llc Se eee 49.9 48.5 
a 23 AR |eaieeememcnlo== 51.5 50 
. 24 Bae eseessaeeatece Bi I 51 
sf 25 (hr el Se Beeemcoacacs 55 53. 1 
& 26 Gt = eeseseeecrccag 56 53.5 
Us 27 Vie WeeeeoeeEmsneco 55.5 54 
“ 28 Lee era 59 54.5 
ue 29 ie! ° Sa eae 58. 75 54.9 
a 30 124 BAe a Sassi sme 57.5 55 
sf July 1 1 2 eee 51 47.75 Water clear. 
" 2 (oo Veseceeaneaneaea 52.5 48 
e 8 Wises secre Seats odds seCnno 52.75 48.5 Stand, 
