Gothic building

H. HarveyThe Progressive Ages of the Triumphs of Science and Treasures of Nature, History and Literature, Chicago, J.A Ruth, 1881, p.77.

The caddis-worm, common in all our fresh waters, constructs for itself a circular window-grating which admits the water and yet protects the pupa from injury, an apparatus exactly like the Wheel-windows of a Gothic building.