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].
![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]. Edward Degen.](https://www.andrewisles.com/pictures/medium/15841.jpg?v=1561272322)
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.
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