'€72 Report on the Trials of Implements at Reading. 
It will be seen that the average temperature on the shel- 
tered side was 16° higher than that on the windward side; 
and that the extremes were, with the dry bulb, 97° to 123° ; 
and with the wet bulb, 85° to 112°. The weight of coal 
consumed by the engine during the trial was 7 cwts. ; cost, 
55. 7c?. : and the coke consumed in the furnace was II chaldron ; 
cost, 16s. %d. The speed of the hot-air fan was 280 revolutions 
per minute. During the trial a sharp shower came on ; but 
the greater part of the hay was in large cocks at the time. 
The stack thus made never showed any signs of heat, and 
the Judges are not aware that the fan was ever worked. 
On the 11th of September the stack was cut open, and the 
Judges were surprised and also disappointed to find that the 
quality of the hay was very inferior. All the sweet malt-like 
flavour had gone, and what was left was a dead fuzzy substance 
which the cutting-knife could with difficulty penetrate, and 
without the faintest scent of hay. 
If the hay which was put through Mr. Gibbs's Hay Dryer had 
been left in the cocks, into which it had been piled before 
the roasting operation was performed, until the weather was 
favourable, and if it had then been shaken out for a short 
time to dry it, a much more valuable stack might have been 
secured than the one which was the result after using this 
much vaunted apparatus. 
Although the second trial of Gibbs's Hay Dryer occurred later 
in point of time than the stacking and fanning on other plots of 
the first trial, it may be well to conclude the account of this 
machine in this place. 
On the 17th of July "Jumbo" and "Alice," and their 
belongings, were moved down to the Sewage Farm, where about 
8J acres of second-cut rye-grass, grown on irrigated land, was 
mown on the 15th and 17th. This was tedded by hand on 
Tuesday, 18th, and Wednesday, 19th, turned over on Thursday, 
20th, and on the same day carted into heaps at the homestead, 
where it remained until Monday, the 24th. By that time some 
of the heaps had got quite hot. The only difference between 
the arrangements at this and the former trial was that three 
men were employed in feeding the machine, and that the hay, 
after passing through the dryer, was pitched into "Tasker's" 
elevator, and by it carried up the stack. There seems no reason 
why the delivery should not be made directly from the dryer 
into the hopper of the elevator. Beginning at 9.47 A.M., the 
whole of the rye-grass had been dried by 6.40 P.M., and one 
hour having been taken out for a trial upon perfectly green 
grass, and for dinner and other stoppages, the actual time 
occupied in drying this 8^ acres of grass was about 7 hours. On 
