For the castle

Aubyn Battye, « Upon a day », Longman’s Magazine, Londres, Charles James Longman, vol. 17, 1891, p. 609.

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 nooday heat.