- 56-579-01 to 56-579-03
Fait partie de Photographic Services Still Photography Records series
01 - Mr Jim Neil weighs some "dredging" in the Fisheries Laboratory in Saskatoon.
02 - Mr. Ron Johnson manipulates fish scales and plastic sheets through rollers to obtain impressions. These impressions on plastic can later be projected for study. Fisheries Lab, Saskatoon.
03 - Mr. Jim Millington pointing out annular rings on projected fish scale.