(vi.) 



Page. 



Art. XIV.— Projects for Water Conservation, Irrigation, and 

 Drainage in New South Wales. By H. G. McKinney, m.e., 

 M. Inst. O.B 223 



Art. XV. — On the principle of Continuity in the Generation of 

 Geometrical Figures in Pure and Pseudo-homaloidal Space 

 of n-dimensions. By G. H. Knibbs, f.r.a.s., Lecturer in 

 Surveying, University of Sydney 243 



Art. XVI. — Some Theorems concerning Geometrical Figures in 

 Space of w-dimensions, whose (n - 1) dimensional generatrices 

 are n ic functions of their position on an axis, straight, curved 

 or tortuous. By G. H Knibbs, f.r.a.s., Lecturer in Surveying 

 University of Sydney 319 



Art. XVII. — Symmetrically Distorted Crystals from Western 



Australia. By W. G. Woolnough, b.a., f.g.s. [Illustration'] 332 



Art. XVIII.— Current Papers, No. 6. By H. C. Eussell, b.a., 



c.m.g., f.r.s. [With Diagrams] ... 336 



Art. XIX.— On the Occurrence of a Variety of Tinguaite at 

 Kosciusko, New South Wales. By Prof. David, b.a., f.g.s., 

 f.r.s., F. B. Guthrie, f.i.c, f.c.s., and W. G. Woolnough, 

 b.sc, f.g.s. [With Plates i., ii.] 347 



Art. XX. — Annual Address to the Engineering Section. By J. M. 



Smail, m. in8t. c.b I. 



Art. XXI.— Some Notes on the Purification of Sewage. By J. G. S. 



Purvis xii. 



Art. XXII.— The Strength of Concrete. By W. H. Warren, 

 m. inst. c.B., m. Am. Soc. c.E., Challis Professor of Engineering, 

 University of Sydney xxiii. 



Art. XXIII. — Notes on the Underground Workings of a Colliery 

 in the Western Coalfields of New South Wales. By J. 

 Hay don Cardew, Assoc. M. Inst.ICB. ... ... ... ... xl. 



Art. XXIV. — Sydney Sewerage : Testing Stoneware Pipes used 



in Reticulation Sewers. By W. E. Cook, M.C.E., M. Inst. C.E.... liii. 



Abstract of Proceedings i. 



Proceedings of the Economic Section ...lxxv. 



Proceedings of the Engineering Section lxxvi. 



Index to Volume XXXV (xlix.) 



