LIGHT RAILWAYS FOR NEW SOUTH WALES. 231 
Mr. W. THow agreed with the objections expressed by the 
author against the introduction of a narrow gauge of railways 
into this country. In South Australia experience of both the 
five feet three inches and the three feet six inches gauge led 
everyone to regret that the country had the burden of two gauges 
to carry. Healso agreed with the author that the expedients 
tried for overcoming the break of gauge difficulty, of which many 
were put to actual test in South Australia, had all, so far, proved 
inadequate to lessen the evil. The only scheme of the sort that 
seemed to possess merit was to change the bogies of vehicles at the 
break of gauge stations. He had had plans worked out for doing 
so by hydraulic lifts.. The carriages would be simply lifted (with- 
out any uncoupling) all at the same moment and the bogies of one 
gauge replaced by those of another. But this plan could only 
apply to bogie stock, and if required for merchandise traffic it 
would compel the employment of that stock in place of the short 
four-wheeled waggons now so common both in this colony and 
Victoria. He could not agree with some of the author’s views, 
in their application to locomotives and rolling stock, that the 
tyres of rolling stock did not suffer much-from curvature. That 
was entirely against his experience and, he thought, erroneous. 
He considered curvature was one of the most active destroyers of 
tyres, and of rails, as well as an enemy to economical working. In 
consequence of the rapid grinding away of flanges and rail-heads 
on curves, they had frequently to turn more material off tyres by 
the lathe in one day than would be worn off them in five years of 
running on straight lines. Sketch ‘‘A” would explain his meaning. 
One fourth size. 
