VI. 



Akt. XIII. — Results of Observations of Comets VI. and VII., 



1886, at Windsor, N.S.W. By John Tebbutt, F.R.A.S., &c. 150 



Akt. XIV.— Port Jackson Silt Beds. By Fred. B. Gipps, C.E.... 173 



Art. XV. — Some New South Wales Tan-substances, Part 3. By 



J. H. Maiden, F.R.G.S., &c 181 



Art. XVI — Soils and Subsoils of Sydney and Suburbs. By J. B. 



Henson, C.E 220 



Art. XVII. — Quarantine and Small-Pox. By J. Ashburton 



Thompson, M.D. Brux., Dipl. Publ. Health, Cantab., &c... 227 



Art. XVIII. — On the presence of j Fusel Oil in Beer. By 



William M. Hamlet, F.C.S., Government Analyst, ... 233 



Art. XIX. — Some New South Wales Tan-substances, Part 4. By 



J. H. Maiden, F.R.G.S., &c 250 



Art. XX. — Autographic Instruments used in the development of 



Flying-machines. By L. Hargrave. (Four Plates) ... 282 



Proceedings 44,73,107,168,216,246,285 



Proceedings of the Microscopical Section 123, 293 



Exchanges and Presentations made by the Royal Society 

 of New South Wales, 1887. 



Index. 



