JUxhihiiect at Windsof. 
tliat was claimed for tliem. Nothing short of a practical test 
will, however, decide upon the merits of the various systems oi 
spring mountings for traction engines, and such a trial would 
prove very interesting, as the application of springs was not in 
vogue at the period (Wolverhampton Show) when the Society 
held its trials of traction engines. The valve gear of this engine 
differed entirely from the ordinary practice, the eccentric rod 
and slide-valve being superseded by tappet valves actuated by 
Fig. 13. — Eddivyton <fe Steevenson's Traction Engine, with 
Roller Attachments. 
cams on a revolving spindle, the precise position of the cams 
and consequent lift of the valves being automatically regulated 
by the governor. The gearing was arranged so that there 
should be as little overhanging strain on the crank-shaft as 
possible, and three different rates of speed were provided for, 
viz., 4 miles, 2^- miles, and 1^ mile per hour. This engine 
certainly presented many new combinations, which bore testi- 
mony to the spirit and enterprise of the makers, and it would 
have been extremely desirable to have tested the engine prac- 
tically, had it been possible to do so without entering into what, 
ought to be a competitive trial of the various engines of this class, 
