The Trials of Threshing Machines at Doncaster. ^483 
all machines used in this country would be included, and which 
would also lead practically to uniformity in size of the machines. 
The special features of merit in the machines were fully 
discussed and the points of merit to be awarded for them 
^ere decided upon ; and copies of these, together with the general 
conditions, were published in April 1890, the entries being 
made returnable on August 1, 1890. 
The points representing perfection were stated in the 
regulations as follows : — 
Clean tliresliing ^30 
Clean shaking 10 
Cavings free from corn 
Chaff free from corn 0 
Chaff free from cavings, seeds, and dirt .... 5 
* Straw unbroken ..,.....•'> 
Corn uninjured ........ l") 
Cleanness of delivery from machines , . , , 2 
{i.e., absence of lodgment). 
* Perfection of finishing ...... i 5 
(i.e., screening or sorting). 
Construction and convenience of working ... 0 
Power in proportion to results 5 
Economy of attendance 4 
Price 2 
100 
' In threshing the barley and oats, the points of straw unbroken will not 
be given, but will be added to the points allowed for perfection of finishing, 
making the number 10. 
The trials were to be with wheat, barley and oats, and " those 
machines which appear tQ the Judges of sufficient merit, after 
preliminary trials with both wheat and barley, will be run for a 
final trial, of not less than one hour with wheat, one hour with 
barley, and half-an-hour with oats, in order to enable a more 
correct and satisfactory judgment of their merits to be arrived at." 
Nine exhibitors originally entered for this competition, but 
of this number four eventually withdrew, leaving five machines 
to compete. The following is a list of the competing firms : 
James Coultas ; E. Foden, Sons, & Co. ; W. Foster & Co. ; 
Gibbons & Robinson ; W. Tasker & Sons. 
The arrangements for the trials were very similar to those at 
CardilT. A large temporary shed was erected, aSbrding suffi- 
cient space in its length to allow of three machines being got 
into place for working simultaneously, as also for a fourth machine 
for re-threshing the straw and cavings ; this machine, with 
combined trusser, together with the engine for working it, 
was kindly lent by Messrs. Hornsby, of Grantham. The width 
