His boots trod again a damp crackling mast, razorshells, squeaking pebbles, that on the unnumbered pebbles beats, wood sieved by the shipworm, lost Armada.
"Ulysses"
James Joyce
Sir Isambert Brunel took his first lessons in forming the Thames Tunnel from the tiny shipworm: he saw how the little creature perforated the wood with its well- armed head, first in one direction and then in another, till the archway was complete, and then daubed over the roof and sides with a kind of varnish; and by copying this work exactly on a large scale, Brunel was at length enabled to construct his shield and accomplish his great engineering work.
"Self Help"
Samuel Smiles
35 2. An Unusual Extension of the Distribution of the shipworm in San Francisco Bay, California, by Albert L. Barrows.
"The Subspecies of the Mountain Chickadee Vol. 17, No. 17, pp. 505-515"
Joseph Grinnell