Sample
3h.
CL &23-P & 830-P:
dorn/-al
Rain, 1,6 cal., 0.9)" equiva-
lent, collected 1010, October 31, 1955 to 10390,
21.0 + 1,0
Novemuer 17, 1955.
CL €32-P: Srovvy 0.535 cal., 0.27" equivalent, collected 1030, November 17, 1955 to 0919, November 21,
1955.
22,3 + 1.0
CL &37-P:
36,0 + h.7
Rain, 0.147 gal., 0.075" equivalent, col-
lected 0919, November 21, 1955 to 0920, November 23,
1955.6
37
CL 840-P: Snovy 0.122 s2al., 0.052" equivalent,
collected 0920, November 23, 1955 to 1055, November 26, 1955.
11.7 + 2.7
36.
CL @71-P:
28,6 + 3.h
Snow, 0.116 val., 9.059" ecuivalent,
collected 1055, Novexber 28, 1955 to 1100, Decem-
ber 2, 1955«
CL 872-P: Srowy 0.31 galey 0.16" equivalent, collected 1100, December 2, 1955 to 1120, December 5,
19,0 + 1.
CL 95:-P: Snow, 0.15 <al., 0.077" eouivalent,
collected 1120, December 5, 1955 to O80, December
21, 1955,
53+ 7
19556
i. CL 976-P:
Snovry 0,082 val., 9,012" equivalent,
collected 0800, December 21, 1955 to 1115,
January 16, 1956,
WhO + 25
% See discussion, "Test of Rain Collection
Tethod," paze 13 of this revort.
Insoluble Residue from Chicago Rains
l,
Insoluble residue from rain, CL 320: 1.82 gal.,
0.930" equivalent, collected December 24, 195),
to Docerber 27, 1954. The filtered insoluble
residue was fused with sodium carbonate before assays
Total Sr? activity insoluble residue: <0.6 dpm
Total Sr?0 activity in solution:
26
Insoluble residue from rain, CL 407 & hOS:
49.2 + 0.5 dp
8
B.
0.71 gal.,
0,36" equivalent, collected February 1€, 1955 to 0900,
February 21, 1955.
The filtered insoluble residue was
fused with sodium carbonate before assay.
.
NYOO
Total Sr?0 activity insoluble residue: 0.7 + Ol dpm
Total Sr90 activity in solution: 29.9 + 1.5dpm
3|
PR