■526 Report of the Trials of Ploughs, Harrows, Sfc., at Hull. 
In the case of Double-furrow Ploughs the Judges came 
to the conclusion that the nomenclature was not satisfactory, 
and drew up a different list with regard to " points of merit," 
which, with the marks assigned, is given below. 
DOUBLE-FUEROW PLOUGHS. — PoiNTS OF MerIT. 
JVIechanical qualities and strength combined with simplicity . , 
Perfection 
represented 
by 
Points awarded. 
80 
20 
100 
80 
50 
50 
200 
250 
100 
50 
20 
.. 
280 
Efficiency of skim coulter and perfect burying of surface matters 
1000 
This arrangement being novel, we are not to expect perfection ; 
the Judges were called upon to fix their scale of points on Monday 
morning, and Exhil)itors were ignorant of the value which 
would be assigned to the different parts of the implement and 
its work. It would l)e very desirable if the points could be 
determined beforehand and made known to Exhibitors, who 
would then bring their machinery to trial with a knowledge of 
what was required : nor would this be difficult to arrange, since 
a Committee, composed of practical men, aided by a competent 
engineering authority, would be qualified to settle the question. 
The Council possesses the right sort of men, and thus the points 
might be issued with the Prize sheet. 
The land selected for the trials comprised seven fields on the 
Hessle Priory Farm, situated aljout three miles from the town of 
•Hull — two of these were taken as reserves and were not re- 
quired, — bordering the llumber, and originally derived from its 
