CONTENTS. 



Address of the President, Ferdinand Mueller, Esq., 

 Ph.D., M.D., F.R.G. and L.S., &c, &c., at the Anni- 

 versary Meeting ... ... ... ... 1 — 8 



Art. I. Observations on Donati's Comet, made between Oct. 12th 

 and Nov. 12th, 1858, by Lfdwig Becker, Esq., with 

 rive plates ... ... .. ... ... 9 — 13 



II. Some interesting facts founded on Barometrical Observa- 

 tions, by A. C. Gregory, Esq., F.R.G.S., &c, with 

 plate ... ... ... ... ... ... 14 



III. On the Geological distribution of Gold, with special re- 



ference to some Auriferous Rocks in South America, 



by P. Nisser, Esq. ... ... ... ... 15 — 40 



IV. Notes on an Australian Bat, No. II., by Ludwig 



Becker, Esq , with a plate ... ... ... 41 — 43 



V. Suggestions for a System of Drainage for Melbourne, by 



the Hon. John Hood, M.L.C. ... ... ... 43—60 



VI. Aidescription of the Silver Mines of the Cerro de Pasco, 

 and the Journey to them across the Andes, by John 



Cairns, Esq. ... ... ... ... ... 61 — 65 



VII. On some Domesticated Animals of South America which 



woidd be useful hi Victoria, by P. Nisser, Esq. ... 65 — 69 



VIII. On the First Technical Use of Gold by the Aborigines of 

 South America, with a description of the Indian 



Tombs, by P. Nisser, Esq., with a plate ... ... 69 — 75 



IX. Improvements in Fundamental Ideas and Elementary 



Theorems of Geometry,by Martin Gardiner, Esq .,C.E. 76 — 96 

 X. On some new Australian Polyzoa, by P. H. MacGilli- 



vray, Esq., A.M., M.R.C.S"., with a plate ... ... 97— 9S 



XI. On Lightning Conductors generally,* with special re- 

 ference to the Conductor attached to the tower and 

 spire of the Wesley Church, Melbourne, by Sizar 



Elliott, Esq. ... ... ... ... ... 99 — 102 



XII. On Dove's Law of the Turning of the Wind, as illus- 

 trated and supported by Observations made at the 

 Flagstaff Meteorological and Magnetic Observatory, 

 Melbourne, by Professor George Neumayer, Govern- 

 ment Meteorologist and Director of the Magnetic Sur- 

 vey of Victoria ; with four plates .. . ... ... 102 — 122 



