ABSTRACT OP PROCEEDINGS. XXX111. 



in column Y of my table, there would be a loss of £20,440 

 per annum, apart from the difference in capital charges 

 (column L), which would make the comparison still more 

 in favour of electric pumping. 



This result arrived at by Mr. Oorin would be rather 

 discoucerting if it could be seriously considered that an 

 arrangement of power stations such as he describes, which 

 would be liable to have its operations interfered with by 

 industrial strikes (which appear to have come to stay), and 

 also be subject to all the risks of interference that have 

 already been referred to in my paper, as well as depending 

 upon the daily flow to Sydney, which after passing through 

 the turbines continues to wend its course along the existing 

 canal, would be accepted by the citizens in preference to 

 the other power station at Broughton's Pass, and to the 

 steady, reliable, uniform and continuous service to be per- 

 formed by the " pressure tunnels," thus enabling the present 

 system of pumping to be discontinued, while the daily supply 

 of water for the city is carried by an entirely independent 

 conduit, located in such a manner as to safeguard the water 

 from any possible interference of any kind whatsoever, 

 whether by accident or design. I, therefore, think the 

 question of supplying electrical energy for pumping purposes 

 in the manner described by Mr. Corin, should not be 

 allowed to interfere with the requirements of high pressure 

 water supply. The two schemes will never be found to 

 work either economically or harmoniously together. "One 

 cannot eat one's cake and have it." I notice that Mr. 

 Corin, in some remarks he has recently contributed, 

 recognises the truth of this adage, for he says — "The use 

 of Cataract and Oordeaux water at Broughton's Pass 

 necessarily could not be considered if Mr. Keble's scheme 

 is carried out, as the head would be required for providing 

 the whole of Sydney with high pressure water supply, and 

 thus would not be available for power." 



