The castle

Aubyn Bernard Rochfort Trevor-Battye, Pictures in Prose of Nature, Wild Sport and Humble Life, Longmans, 1894, p. 224.

Of the caddis-worm, architect and builder, collecting sticks and shells for the castle he will bear about with him through life ; of the caddis-flies, rising buoyant through the water, and, dry almost at once, stretching their wings to lose themselves forthwith in the quivering noonday heat.