CONTENTS OF VOLUME XXL Pt IL 



Art. XV. On the Stnictiire of Hologlcea duhi;i, an Oryaiiisiu 

 of doubtful affinity, by Baldwin Spencer, M.A., 

 C.M.G., F.R.S. (Plates XXIV., XXV.) ... 4()1 



XVI. -Polyzoa from the Gilbert Islands, by C. M. Maple- 

 stone. (Plates XXVI -XXVIII.) ... .. 4lo 



XVII. — Description of a New Species of Peripatoides from 

 West Australia, by Baldwin Spencer, M.A., 

 C.M.G., F.E.S. ... .. ... 420 



XVIII. Obsidianites -Their Origin from a Chemical Stand- 

 point, by H. S. Summers, M.Sc. ... 42:^ 



XIX. - Obsidianites — Their Origin from a Physical Stand- 

 point, by Kerr Grant, M.Sc. ... ... 448 



XX. — Description of a New Species of Sminthopsis, by 



Baldwin Spencek, M.A., C.M.G., F.R.S. 449 



XXI. — On the Occurrence of the Selachian Genus Corax in 

 the Lower Cretaceous of Queensland, by Frederick 

 Chapman, A.L.S., &c. (With Text Figure) 452 



XXII. — -The Endoparasites of Australian Stock and Native 

 Fauna ; Part I., Introduction, and Census of 

 Forms recorded up to date ; by GeoSgina Sweet, 

 D.Sc, Melb. Univ. ... ... ... ... 454 



XXIII. — The Endoparasites of Australian Stock and Native 

 Fauna; Part II., New and Unrecorded Species; by 

 Georgina Sweet, D.Sc, Melb. Univ. (Plate 

 XXIX.) ... ... ... ... ... .5(18 



XXIV. — On the Separation and Analysis of Minerals in the 

 Dacite of Mount l»andeiiong, Victoria, by Henry 

 C. Richards, B.Se. . ... ... 52S 



XXV. — Contributions U> the Flora of Australia, No. 10, by 

 Alfred J. Ewart, D.Sc, Ph.D., F.L.S., and 

 Jean White, M.Sc (Plates XXX.-XXXIII.) 54(> 



Annual Report and Balance Sheet 



Office- Bearers 



Committees 



liisT OF Members 



Index 



551 

 557 

 558 

 559 

 565 



