164 Meteorology of Melbourne. 
them to the Yarra. But the main pipes are not yet laid, 
except for a very short distance; and, therefore, I do not see 
that it is too late to lay them in another direction, where we 
shall find at all times the purest water in the most unlimited 
abundance. 
But, while I am of opinion that the pipes ought not to be 
laid, | am most anxious that the capabilities of the reservoir 
should be tested before finally abandoning it; and, for this 
purpose, I hope that the aqueduct will be completed in time to 
take advantage of the winter rains. 
I may also notice that no steps have yet been taken to 
convey the two branches of the river through the swamps. 
This will cost a very large sum, and of course is not yet 
contracted for. 
It is deeply to be regretted that a work of such magnitude and 
importance as that which forms the subject of this paper should 
be found te be based on incorrect scientific principles; and it 
shows the vast importance of cultivating the sciences, even in 
this remote corner of the globe. 
Had there been a scientific society in this city two years 
ago, the Commissioners might have obtained more correct 
information respecting the rate of evaporation in this colony, 
and more certain and reliable data with respect to the water- 
shed of the Plenty basin; which were so necessary to ensure 
the success of their scheme. 
It was purely on scientific grounds that I was induced to 
undertake the investigation of this subject; and it was the 
conviction of its great importance, in a scientific as well as in 
a sanitary point of view, that has led me to submit to you the 
result of my inquiries. 
If there is any probability of the Yan Yean Reservoir 
scheme failing for want of water, the sooner this unfortunate 
result is discovered the better. 
It would surely add little to the scientific reputation of 
Victoria, that a work of such magnitude should be allowed to 
be completed, at a ruinous sacrifice of public money, before 
its failure is even suspected. 
Ant. XIII.— The Meteorology of Melbourne. ByDr. E. Davy. 
My attention during a part of the last four months having 
been directed to the meteorology of this place, I propose to 
lay before this Society the result of the observations I have 
