Robert Slater Bayley, Nature considered as a Revelation, Londres, Hamilton, Adams and Co., 1836, p. 155.

And might not man, even there, have learned, form the caddis-worm, how to make a ciment that would resist the water.

p.65.

The caddis -worm teaches that invention cannot be confined to one mode or to one material. For, the caddis worm, if it can get no stones or sand to make its house, will use little shells, or even reeds.