^ 5~8 
c I ~2^ ^ Cl 
V 
U- ’f— B.;v\ 
iM. 2 / 
^ERATURE RECOF^. 
Instrument ftsed, ^i Q 
Current number of observation, ^ ^ 
^ 
Hearings 
Time of.( 
:iCtc^22 C <^:ic 
tace 01 water, f 
/ ^~~T .f j C tatliomf;^ 
1 -o I 
s^'fl|ee current, ‘ v_ ' 
./ ^vv' yJ 
’/ current, 
2 ->- c, 
-aCa" 
