W.S. Ross, Stewart’s newspaper reading book, extr. from the newspapers of the present time, selected, annotated by W.S. Ross, Londres, 1879, p. 62.

He has them in a large iron cage in his office, the cage being some six feet long by three feet quare, with a large pan of water three feet across, into which they plunge and dive with the greatest activity, turning over the weeds and picking out caddis-worms and living insects of all kinds. There they stand on stones in the water, bobbing with a sort of country-girl courtesy.