A source of intense amusement

C. L. Jones, « The Fresh Water Aquarium », Fruit recorder and Cottage Gardener, vol. 9, n° 11, Rochester (N Y), A. M. Purdy, 1 novembre 1875, p. 166.

The Caddis Worm should be in every aquarium; it is the larvae of the May-fly and may be found in any shallow stream. To watch these  worms collect minute twigs, grains of sand, etc., to construct the grotto-like nests, is a source of intense amusement when observes through a magnifying glass, and the tadpole affords an interesting lesson for a period while gradually developing into the frog state.