490 
Rrport on the Exhihitmi of Imjilvmcids 
('client iron cow-cribs and sheep-cribs on wheels. His collection 
;ils<) contained numerous other articles of a similar description, 
which deserve the highest commendation as regards moderate 
price, lightness, strength, and good workmanship. 
A fodder-preserver, more particularly applicable to parks, was 
exhibited by Mr. James Moorcroft, of Bratley, near Burton-on- 
Trent, which deserves commendation on account of its neat ar- 
rangement, substantial structure, and cheapness. 
Jfeif/hiiir/ Marlniics. — Mr. H. G. James, Great Tower Street, 
London, produced two weighing-machines invented by M. 
George, of Paris, which, on account of the correctness of their 
principle, were considered to merit the Society's encouragement, 
and a premium of 10/. was awarded for them. It would require 
more space than can be devoted to this subject to explain the 
causes of error incident to all weighing-machines hitherto made, 
and from which Mr. James's are free. The principle is mathe- 
matically correct, and mechanically carried out, as is proved by 
placing the object to be weighed on any part of the scale-board, 
when it will be found to be balanced by the same weight. 
Scale-boards of the largest dimension may be used : and it is 
hoped that I>y means of this invention agriculturists will be in- 
duced to ascertain the relative value of varieties of food in the 
fattening of cattle, by frequently placing them on the weighing- 
machine, which will indicate the weight of the largest ox, or 
loaded cart, with as much accuracy as the sack of corn or still 
lighter objects. 
Fire and Garden Engines. — A number of these eminently useful 
machines were exhibited. To one hand-engine in particular, in- 
vented by Mr. J. Read, Regent Circus, Piccadilly, London, the 
Judges desire to invite attention, as uniting convenience as respects 
the garden, Avith very considerable power in case of fire in dwell- 
ing, out houses, &c. With four men it Avill discharge 20 gallons 
of water per minute, to a distance of 60 feet, a quantity which may 
often serve to arrest an incipient fire. The valves are solid and 
spherical, and may be pronounced as at all times in order for use, 
so little liable are such valves to get out of repair. It is very light, 
is moved on tw o good-sized wheels, and will pass through ordinary 
doorways. By an arrangement of the levers it is readily reduced 
to the pow er of a single man and adapted to horticultural use. 
A very powerful ])ump was applied to Mr. Dean's travelling 
steam-engine ; a combination which may often be found extremely 
useful for emptying ponds, draining, irrigating, &c., as well as a 
fire-extinguisher. 
Ricks. — The silver medal was given to Mr. John Gillett, of 
Brailes, near Shipston-on-Stour, for a valuable and cheap little 
tool termed a rick-ventilator. The very simple idea of boring a 
