

CONTENTS. 



Page 



Art. XIII. — Suicide in Australia : A Statistical Analysis of the 

 Facts. By G. H. Knibbs, c.m.g., f.r.a.s., e.s.s., etc., Com- 

 monwealth Statistician, 225 



Art. XIV. — Note on a new type of aperture in Conularia. By 



Chas. F. Laseron. [With Plate XL] 247 



Art. XV. — The Eiver Gravels between Penrith and Windsor, By 



H. I. Jensen, d.s c 249 



Art. XVI. — An Autographic Air-Flow Eecorder. By W. E. 

 Hebblewhite, b.e. (Communicated by Prof. S. H. Barra- 

 clough, b.e., m.m.e.) [With Plate XII.] 258 



Art, XVII. — On some New England Eucalypts and their Economics. 

 By E. T. Baker, p.l.s., and H. G. Smith, f.c.s., Technological 

 » Museum, Sydney. [With Plate XIII.'] 267 



Art. XVIII. — On Eock Specimens from Central and Western 

 Australia, collected by the Elder Scientific Exploring Expe- 

 dition of 1891-2. By J. AllAn Thomson, b.a., d.sc, f.g.s. 

 (Communicated by Prof. David, b.a., c.m.g., f.r.s., Hon. 

 d.sc. Oxon.) [With Plate XIV.] 292 



Art. XIX. — A suggested explanation of Allotropism based on the 

 Theory of Directive Valency. By F. B. Guthrie, p.i.c, 

 Department of Agriculture 318 



Art. XX. — The nature and origin of Gilgai Country; with notes 



on Quaternary Climate. By H. I. Jensen, d sc 337 



Art. XXI. — Some Curious Stones used by the Aborigines. By 



E. H. Mathews, l.b. [ With Plate XV.] 359 



Art. XXII. — On the Australian Melaleucas and their Essential 

 Oils. By Eichard T. Baker, f.l.s., and Henry G. Smith, 

 e.c.s., Technological Museum, Sydney. [With Plates XVI- 

 XXIV.] ... 365 



Art, XXIII. — The Geology of the Eruptive and Associated Eocks 

 of Pokolbin, New South Wales. By W. E. Browne, b.sc, 

 and A. B. Walkom, b.sc, Demonstrators in Geology, Uni- 

 versity of Sydney. [With Plates XXV -XXVIII.] 379 



Art. XXIV. — The value of the Nitrate Figure in determining the 

 fitness of Water for Drinking Purposes. By C. S. Willis, 

 m.d., m.r.cs. [With Plate XXIX.] 408 



Art. XXV. — Haematozoa of Australian Birds, No. 2. By J. 

 Burton Cleland, m.d., ch.M., Government Bureau of Micro- 

 biology, Sydney. N.S.W., and T. Harvey Johnston, m.a., 

 d.sc, Queensland University, Brisbane. [With Plates XXX- 

 XXXIII.] ... 415 



