47G 
Rrpoi't on the Exhihition of Implements 
at work, but remain attached to the implement. The wheels are 
thus at all times ready for travelling: it, instead of their having to 
be song-ht for, probably at some distant part of the field, when 
the work is done. 
Rollers. — The Judges did not see occasion to award any 
special prize in this class, though many well-contrived rolls, and 
of various dimensions and arrangements, were presented. The 
principal novelties were two implements of wrought-iron in the 
collection of Mr. Hill, of Brierly Hill Iron- Works, near Dudley. 
The general advantages contemplated by the substitution of 
wrought for cast iron, as the material of rolls, are the obtaining 
enlarged diameters without increase of weight, and the diminish- 
ing the chance of breakage. One of these rolls, formed of two 
separate cylinders, was furnished with sliding weights, so as to 
render it heavier or lighter, ranging between 15 and 40 cwts. in 
order to accommodate it to different purposes. In commending 
these wrought-iron rolls, which were well manufactured, the 
Judges are not prepared to pronounce, with any certainty, as to 
their durability being equal to those composed of cast-iron ; 
wrought-iron being subject to more rapid decay from oxydation 
than cast metal, when exposed to the vicissitudes of the seasons. 
Some experience is desirable to determine this question. 
Couch-rahes. — The attention of machine-makers was solicited 
by the Society to the construction of a rake for collecting couch, 
which had the effect of bringing forward four implements ex- 
pressly designed for the purpose. The silver medal was awarded 
to Mr. Str<atton, of Bristol, for a tool which appeared to possess 
the desired qualifications. The raking apparatus consists of tAVo 
separate rows of long curved teeth fixed upon a shaft or axis, the 
points of one of which are upon the ground collecting, whilst the 
other row stands vertical and empty. The row of teeth collecting 
Is retained firmly In action by two catches, and when filled, the 
driver gives half a turn to a handle which liberates the catches, when 
the rakes Instantly make half a revolution, the one set discharging 
its load whilst the other set comes into play. The machine Is 
mounted on three wheels, is calculated to be worked by one horse, 
and the inventor estimates its capabilities at raking from 20 to 
30 acres per day. The Judges were unable to experiment with 
this new implement on couch land, but are disposed to consider 
the principle sound, and likely to be efficient in the collection of 
hay, corn, and stubble, as well as couch. It is also proper to 
mention that It Is designed, on a stronger construction, to collect 
cane trash in the plantations, for which it was originally contrived, 
and has been found. In the island of Antigua, to be well adapted. 
Drills. — The existing system of drill-husbandry, practically 
considered, has an origin intrinsically English, though faint traces 
