An alternative explanation of the effect of temperature upon retention in the gold-fish.

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Abstract
The discovery by French (Jour. Exptl. Psychol. 31: 79-87. 1942), that fish kept during a 24-hr. interval in cold water after the learning of a maze relearned the maze more rapidly than fish kept during the same interval in warm water, is discussed in the light of evidence from other authors that the metabolic rate of fish depends not only upon the temp. of the water in which they are placed at the moment but also upon the residual effect of their previous temp. French''s conclusion that there is a forgetting process which progresses more slowly in cold water is not justified by the evidence, since the fish kept for 24 hrs. in cold water would be metabolizing more rapidly than those kept in warm water when all were returned to an intermediate temp. Various subsidiary points are also considered.