40 



Transactions. — Miscellaneous. 



Engines, boilers, engine-house, workmen's cottages 

 Mains (including laying), 70 tons at £15 10s. 



Shaft, 100 feet 



Drive, say ------- 



Air cocks, check valves, etc. - - - - 



Reservoir ------- 



Contingencies, 1 per cent.^ - - . . 



Total expenditure 

 The yearly cost will be : 



Wages, coals, oil, etc. - - - - - 

 Interest, at 8 per cent. - - - - - 



Annual expenses 

 Cost per million gallons 



£10,000 



1,085 



500 



500 



250 



3,500 



15,835 

 1,583 



- £17,418 



- £1,860 



1,393 



£3,253 



£8 18s. 3d. 



Art. VII. — Notes on the Proposition to Supply Auckland with Water from 

 Mount Eden. By James Stewart, C.E. 

 {Read before the AiccTcland Institute^ Sth December, 1873.] 

 At last monthly meeting of this Society, Mr. Goodall read a paper in which 

 the above proposition was pretty fully set forth, and a scheme for testing its 

 feasibility stated in detail. This is not, by any means, a new idea, as about 

 eleven or twelve years ago it was proposed as original, and advocated with 

 other three schemes for the same purpose. One of the schemes was, in sober 

 earnest, a proposal to impound the water flowing down the valley of Newton, 

 from the cemeteiies ; and the advocacy of the Mount Eden one showed 

 equally the absence of all engineering thought or study. Mr Goodall's paper 

 dealt with it differently, and in a clear manner stated a method of testing the 

 level and area of the supposed water basin. One grand point was, however, 

 overlooked, just as the earlier propounder had done. While the existence of 

 water in wells near the base of Mount Eden is undisputed, and that at a 

 tolerably high level above the sea, there is no attempt to show that there is a 

 source of supply at all adequate to the demand. It is not only necessai-y to 

 show a reservoir of water, but how much may be daily and yearly drawn from 

 it without failure must also be demonsti'ated. Two lines of evidence are 

 required to show the latter point in this case. Firstly, the discharge of the 



