Report on the Trials of Implements at Reading. 655 
A handle is fitted on the cog-wheel, and one revolution of 
this wheel gives 13 revolutions of the fan. The air inlet is 
8 in. X 8 in. The fan-case when in use is fitted on to a wooden 
tube, which is placed horizontally in or under the stack, and at 
its outer end bent upwards at an angle of about 60°. This fan 
was only exhibited in connection with Gibbs's Hay Dryer. The 
stack of hay which had been operated upon by the dryer never 
generated sufficient heat to require the working of the fan. 
Stand No. 31. — I?. A. Lister and Co., of the Vicioria Iron WorJcs, 
Dursleij, Gloucestershire. 
Article S'iG — (New Implement.) — Fau, for Exhaiisting Heat from Eicks ; 
manufactured hy the Exhibitors, rrice 15?. This can be worked by two 
men, or is suitable for driving with horse gear, or steam or water power. 
(For Trial.) 
Fig. 4:.— View of Lister and Co.'s Fan, No. 376. 
This fan (see Fig. 4) is an unenclosed centrifugal drum, 
26 inches in diameter and 5 inches wide. The air enters on 
one side only, by an inlet 9 inches in diameter. The motion 
