TESTING FISH FOR RADIOACTIVITY.—The Dominion X-ray and Radium Laboratory in Christchurch has begun checking foodstuffs as part of its new programme of monitoring for fall-out after nuclear explosions. The first samples have been fish from the Cook Islands; but no sign of fall-out has been found. TOP: Mr A. G. Armstrong, newly-appointed chemist, about to place a tropical fish in the furnace glowing at 1000 degrees. BOTTOM: From left to right are shown a clam before it is incinerated; the soft body of the clam separately reduced to ash; and the fluffy pile of shell lime after the clam shell has disintegrated. The residues are then further chemically separated and examined for possible fall-out.

Press, Volume XCVII, Issue 28553, 5 April 1958, Page 11

TESTING FISH FOR RADIOACTIVITY.—The Dominion X-ray and Radium Laboratory in Christchurch has begun checking foodstuffs as part of its new programme of monitoring for fall-out after nuclear explosions. The first samples have been fish from the Cook Islands; but no sign of fall-out has been found. TOP: Mr A. G. Armstrong, newly-appointed chemist, about to place a tropical fish in the furnace glowing at 1000 degrees. BOTTOM: From left to right are shown a clam before it is incinerated; the soft body of the clam separately reduced to ash; and the fluffy pile of shell lime after the clam shell has disintegrated. The residues are then further chemically separated and examined for possible fall-out.