616 
RISE AND FALL OF THE COLUMBIA RIVER. 
Highest. - -- 
Highest. - -. 
Observations of the Columbia river, Sc.—Continued. 
Rise. Fall. Temperature | Temperature Remarks. 
of air. of water. | 
Inches. Inches. 2 ° 
a =0% 5550555] FARe eee coos 53 48.75 | Stand. 
ee eee ale = 4 53:75 43.5 Fall. 
ae 3 54.5 49 ) 
Snes coe 54 55 49, 75 
RIPE Ate 74 55.5 49.9 | 
eyes. 104 5D 50.5 
ee es 134 55. 9 50.9 | 
=p Sew eSASee 15 56. 75 BYE) 
2 | er 
PRS 2 eas 6h Ef 75 | Bie Water continues clear during fall. 
bt SEA, 134 55 51.2 
3 disia aStaaee's,< 18 55. 75 52 | 
Shodeeckeme 1€4 56.5 52.5 
ates eeenteess 144 56 52. | 
Soe Ee eenc 12 56, 75 52. 2 | 
See eee t= 6 57.5 53 
bie saenioser 24 58 53.5 River about the usual stage. 
1598 2074 
121} above spring level. 
2074 above summer level. 
