WATER SUPPLY AND IRRIGATION. 161 
cult to effect necessary repairs, and this might have caused 
great loss to stock dependant on watering-places where the pump- 
ear was out of order. The conditions surround e 
ing : es 
works have however altered so much since they were initiated 
that it is now well worth while considering whether water cannot 
be raised in a more economical manner than by the use of the 
power to pumping gear would give better results, and would not 
only be more economical in itself, but would very considerably 
lessen the cost of the shaft ; for when double buckets were 
dispensed with the size could be very much reduced, lessening the 
outlay on both sinking and slabbing ; the latter too would not be 
subjected to the same strains as with buckets working either on 
Oo 
Motive agent, even when applied to improved gear should however 
avoided as much as possible, as in bad seasons there are 
elements of uncertainty attached to it even as there are to its 
more economical rival wind. This agent has up to the present 
machinery of the past can be abandoned and more perfect 
appliances adopted, and in future works of this class, where the 
io known to have a limited area and to be influ 
— ee Cy 
much increased by sinking shafts to tap these drifts in places 
Where. the surface Pa favoured the collection of either 
nding or 
