1600

=

1400

1200

—

foe

NUMBER DISTRIBUTION

1000

800
e

—~

600

400

200

—

—

2

3

4

5

6

7

TRACK DIAMETERS
Figure

3.

Distribution of track
portion of film XXXV.

600

8

910

20

(MICROMETERS)
sizes

in

the

exposed

30

40

Select target paragraph3