TRANSACTIONS 



OF THE 



EOYAL SOCIETY OF YICTOKIA. 



VOL. IT. PART I. 



1890. 



CONTENTS. 



PAGE 



THE TEANSVERSE SECTIONS OF PETIOLES OF EUCALYPTS AS 

 AIDS IN THE DETERMINATION OF SPECIES, by D. McAlpine, 

 F.C.S., AND J. R. Remfrey. (With Plates 1, 2, 3, 4, 5, 6, and 6a) - 1 



THE VICTORIAN LAND PLANARIANS, by Arthur Dendy, M.Sc, F.L.S., 



Demonstrator and Assistant Lecturer in Biology in the University 



OF Melbourne. (With Plate 7) - - 65 



THE EUCALYPTS OF GIPPSLAND, by A. W. Howitt, F.G.S. (With 



Plates 8, 9, 10, 11, 12, 13, 14, 15, 16) 81 



A NEW FAMILY OF HYDROIDEA, TOGETHER WITH A DESCRIPTION 

 OF THE STRUCTURE OF A NEW SPECIES OF PLUMULARIA, 



by W. Baldwin Spencer, M.A., Professor of Biology in the University 



OF Melbourne. (With Plates 17, 18, 19, 20, 21, 22, 23) - - - 121 



EDITED BY PEOFESSOR W. BALDWIN SPENCEE, M.A., HON. «EC. 



MELBOURNE. 

 PUBLISHED FOR THE ROYAL SOCIETY 

 BY THE SPECTATOE PUBLISHING COMPANY LIMITED, 270 POST OFFICE PLACE. 



April. 1891. 



