Ecdysis, as morphological evidence of the original tetradactyle feathering of the bird's fore-limb, based especially on the perennial moult in Gymnorhina tibicen [drop title].
London: Transactions of the Zoological Society of London, volume sixteen, part eight, 1903. Large quarto, text illustrations. Binder's cloth, small library stamp on front end paper, otherwise a good copy. More