CONTENTS. 



Page 



Art. XIV.— On the Darwinias of Port Jackson and their Essential 

 Oils. By R. T, Baker, f.l.s., Curator, and H. G. Smith, 

 f.c s., Assistant Curator, Technological Museum, Sydney... 163 



Art. XV.— Orbit Elements Comet I., 1899 (Swift). By C. J. 



Merfield, f.r.a.s * 177 



Art. XVI. — On the composition of N. S. Wales Labradorite and 

 Topazes with a comparison of methods for the estimation 

 of Fluorine. By G. Harker, B. Sc. (Communicated by Prof. 

 Liversidge, m.a., ll.d, f.r.s.) 193 



Art. XVII.— On a remarkable increase of temperature after dark 

 at Seven Oaks, Macleay River. By Hugh Charles Kiddle, 

 f.r. Met. Soc, Public School, Seven Oaks, Macleay Eiver ... 204 



Art. XVIII. — Records of rock temperatures at Sydney Harbour 

 Colliery, Birthday Shaft, Balmain, Sydney, N.S. Wales. 

 By J. L. C. Rae, E. F. Pittman, Assoc R.S.M., and Professor 

 T. W. E. David, ba., f g.s 207 



Art. XIX.^-Note on Edible Earth from Fiji. By the Hon. B. G. 

 Corney, m.d., Professor T. W. E. David, b.a., f.g.s., and 

 F. B. Guthrie, f.c.s 223 



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



Norman Self e, M.Inst. C.E. ... i. 



Art. XXI. — The Sewerage Systems of North Sydney and Double 



Bay. By J. Davis, M. Inst. C.E. .. . ... ... ... ... xi. 



Art. XXII. — The manufacture of Monier Pipes. By F. M. Gummow xxxiv. 



Art. XXIII — "Le Pont VierendeeV By J. I. Haycroft, m.i.c.e.i. xxxviii. 



Abstract of Proceedings i. 



Proceedings of the Engineering Section lxix. 



Proceedings of the Medical Section ... lxxi. 



Index to Volume XXXIII (xxvii.) + 



