iv CONTENTS. 



VIH. On Ihe Sfruef.urc of the Larval Polyptenis. Jhj J. S. Budgett, M.A., F.Z.S. 

 (Plates XXX II r.'-XXXV.) pa-e 315 



"IX. Ecdi/sis, ffs MorplioJofjicnl FAndcnce of the Original TetradaGtyle Featherinff of 

 the Bird's Fore-limh, hnsed especially on the Perennial Moult in GymnDrhina 

 tibicen. By Edwakd Degrn, F.Z.S. (Plates XXXVI.-XXXVIII.) . 847 



List of the Papers contained in Vol. XVI 419 



Index of Species, &c 421 



