Rqiort of the Judges of Implements at Norwich. 549 
cultj from the contact of stumps, stones, 6cc. This new form 
of coulter is self-adjusting, and dispenses with wooden pegs, 
pressbars, and weights. The exhibitors also drew our attention to 
what they consider a great improvement over other drills, namely, 
the absence of loose wheels to change, and gears to be altered 
for every change of seed, or varying consistency of manure ; and 
these, coupled with the fact of there being no shifting pinions 
or parts liable to be lost, form great advantages. Another 
feature which this " Excelsior Drill " presents is a patent Auto- 
matic Land-measurer, furnished with a pointer and actuated by 
a worm pinion in connection with the main axle, which will 
indicate the number of acres drilled during the day. 
Messrs. Hornsby and Sons, Double Plough, Xo. 3122. — 
This plough was sent into the field for trial, and for the Judges 
to see it work. The ridge was set with the plough and ploughed 
a piece of land, 7 inches deep and 24 inches wide, each furrow 
being 12 inches wide, with a pair of horses, with ordinary 
breasts, ploughing 6 inches by 8 inches, and leaving a furrow at 
an angle of 45^, and making good work. The ordinary breasts 
were taken off, and digging breasts were put on, and ploughed a 
furrow 7 inches by 12 inches, breaking the land thoroughly, and 
leaving it level and even on the top, in a condition ready for 
the drill. Though a pair of horses did the work, they could 
not reasonably be expected to remove this amount of soil, and to 
perform the perfect disintegration which the plough did. Another 
horse might have made the plough appear to be easy of draught. 
The plough was entirely under the control of the man riding 
upon it, turning in and out of work at the ends with the greatest 
ease, merely turning the handle to the right or left. It needs 
no larger headland than an ordinary plough. 
In taking the plough out of work, the action of the newly 
improved lift could be clearly seen. This consists of a duplex 
lever, the lower handle of which fixes the position of the large 
land-wheel whilst the implement is in work. On arriving at 
the end, a pull is given to the upper handle, which has the 
double effect of lowering the large land-wheel and the small 
carrying Avheel on the opposite end of the cranked axle, and 
also of locking the large wheel, thus forming a stationary 
point of contact with the ground. The forward motion of the 
horses lifts the bodies clear out of the ground ; the same duplex, 
lever, coming into contact with a pin at the end of the bracket 
on which it moves, locks the crank-axle so as to retain the 
plough out of work, and at the same moment unlocks the large 
land wheel, so that the plough may travel as far as desired. 
The wheels are of a new kind, being fitted with inside 
chilled bush and renewable wrought axles. The patent parallel 
straightening bridles enable the ploughman to straighten at 
