674 Report on the Trials of Implements at Reading. 
state, even it the machines were more capable of converting grass 
into hav than thev have vet shown themselves to be. 
At the Sewage Farm there was plenty of evidence of strong 
faith in the power of Gibbs s machines. Several hav-stacks 
had been turned over once or twice, and heaps of stuff, which 
looked like the blackest of black tobacco or half-dried sea-weed, 
lav about the premises. The air was filled with a pungent 
acrid odour, powerful enough to overcome the obnoxious gases 
of the sewage. 
Trials of Exhaust Faxs. 
Having disposed of the trials of this Hav-drver, undivided 
attention mav be given to the preparations for and the course of 
the trials of the Exhaust Fans. 
In the following account of the practice and experience of 
each exhibitor in dealing with the plot of hay allotted to him, 
the different stacks will be noticed in the order in which the 
original assiornment of g-round was made. 
Plot I. — J. Coultas. 
Fan irorl-ed hy Steam Power. 
As previously stated, the hav for this fan was cut on the 3rcl. 
and the stack was made up on the 7th, Sth, and 10th of Julv. 
Fig. 9. — Plan of Hay-stath and Fan iniih Flu^s, as worked by 
J. Coultas. 
[< so >; 
Fan 
On Sunday, the 9th, heavy showers fell, and the roof of the 
stark got rather wet. On the Mondav morning the stack was 
finished, but nearly the whole of the hay in it had been pu 
