d/m/g

SON,

9

10> a

‘

WET

a

iia

Z

i

a

3

104 om

i4

i

sr89+ sr9O

7

7

DECAY

_

un

as an
iF}J

4\

pr o~

‘

’

8

.

mt

\ /

iy

NG

QO
=
fs
Fig. 2.

“

© $590 + y90-activiTy

L
=

tal

O TOTAL P- ACTIVITY

\

of

R590
(tC
Sr
DECAY
e

Ssr89
{
200

|
300
DAYS AFTER

|
|
400
500
MAY 14, 1954

~

~

|
600

|
700

Radioactivity in Coenobita carapace on successive collection dates compared with the

decay of radiostrontium.

_
4
7

DECAY

’

|
100

=

Values in disintegrations per minute per gram wet weight.

“7

Select target paragraph3