Contents. 



Art. XIV. On the probable Influence of Evaporation on the Quan- 

 tity of Water to be Supplied by the Reservoir at Yan 

 Yean, by Clement Hodgkinson, Esq., C.E. Survey 

 Department, with a plate ... ... ... 175 



XV. Report of the Commissioners appointed by the Phi- 

 losophical Society to investigate the alleged insuffi- 

 ciency of Supply for the Yan Yean Water Works, 

 by Dr. Wilkie, and Messrs. F. Acheson and F. C. 

 Christy ... .. ... ... ... 187 



XV. On the influence of the Physical Character of a Country 

 on the Climate, by R. Brough Smyth, Esq. , Mining 

 Engineer, with four plates ... ... ... 203 



XVII. A description of Fossil AnimalculEe in Primitive Pocks 

 from the Upper Yarra district, by William Blan- 

 dowski, Esq. , with a plate ... ... ... 222 



XVIII. Practical Remarks on Hydrometry, by Clement Hodg- 

 kinson, Esq.. C.E. ... ..*. ... ... 223 



XIX. On the Primary Upheaval of the Land round Melbourne, 

 and the recent Origin of the Gypsum or Sulphate of 

 Lime on the Great Swamp between Batman's and 

 Emerald Hills, Flemington, Williamstown, and Mel- 

 bourne, illustrated by a large number of specimens 

 from the locality, by William Blandowski, Esq., 

 with two plates ... ... ... ... 229 



XX. On what Data does the City of Melbourne depend for 

 an adequate Supply of Water from the Yan Yean 

 Reservoir ? by David E. Wilkie, Esq. ... ... 234 



XXI. Remarks on the favorable Geological and Chemical 

 nature of the Principal Rocks and Soils of Victoria, in 

 reference to the production of Ordinary Serials and 

 Wine, by Clement Hodgkinson, Esq., C.E., Survey 

 Department ... ... ... ... ... 260 



XXII. Proceedings 

 •XXIII. The Philosophical Society ... 



