The Exhibition of Fishes in Museums.

THERE are at least four museums in the United States in which collections of fishes are exhibited ``in which the specimens are presented without the usual iron supports, with sufficient space around each fish and in natural colours'' (NATURE, October 29, vol. lxxviii., p. 659). These institutions are the Field Museum of Natural History, Chicago; Museum of Comparative Zoology, Cambridge; American Museum of Natural History, New York, and Museum of the Brooklyn Institute.