1802.] 
more simple, cheap, and expeditious method 
than any hitherto known ox in use of boring 
and blasting rocks in mines, shafts, wells, &c. ; 
the gold medal, or thirty guineas. Certificates 
of the method having been practised with suc- 
cess, with a full description thereof, to be deli- 
vered to the Society on or before the first Tues- 
day in January, 1803. 
142. Heatinc: Rooms FOR THE PUR- 
poses oF MANUFACTURERS. To the person 
who shall invent and discover to the Society a 
method of heating rooms, superior to any hither- 
to known or in use, and at a moderate expence, 
for the purposes of painters, japanners, and other 
manufacturers, $O as to avoid the necessity of 
iron or copper tunnels going through the rooms 
to convey the smoke, whereby the danger from 
such tunnels may be prevented; the gold me- 
dal, or forty guineas. A model, or complete 
drawing and description of the method, with 
-eertificates that it has been successfully practis- 
ed, to be delivered to the Society on or before 
the last Tuesday in March, 1803. 
143. IMPROVED VENTILATION. To the 
person who shall invent and produce to the So- 
ciety a mode of permanently ventilating the 
apartments in hospitals, workhouses, and other 
@rowded places, superior to any now known or 
used; the gold medal, or fifty guineas. A model 
of the apparatus, and a fullaccount of the means 
by which the effect has been produced, with 
proper certificates, to be delivered to the Society 
on or before the last Tuesday in February, 
1803. 
144. Mitt Stones. To the person who 
shall, between the first of February, 1802, and 
the first of February, 1805, prepare and bring 
into use the greatest number of mill stones, 
taken from any quarry inthe United Kingdoms, 
equal in quality to the French burrs, not less 
than thirty pairs; the gold medal, or thirty 
guineas. Certificates that the said mill stones 
were all taken from the same quarry, with 
their prices and dimensions, that they are equal 
to the French burr, not less than three feet eight 
inches diameter, and are actually in use, to be 
produced to the Society on or before the third 
Tuesday in February, 1803. 
145. For the next greatest quantity, not less 
than twenty-five pair; the silver medal, ot 
fifteen guineas, on similar terms. 
146. PREVENTING ACCIDENTS FROM 
Horses FALLING WITH TWO-WHEELED 
CarrRiaAces, To the person who shall invent 
and produce to the Society a method superior 
to any hitherto known or in use, to prevent ac- 
cidents from the falling of horses with two- 
wheel carriages, especially on steep declivities; 
the silver medal, or fifteen guineas. A model 
of the apparatus, and a full account of the 
means by which the effect has been produced, 
with proper certificates that the same has been 
used with success, te be delivered to the So- 
Premiums tn Colonies and Trade. 
583 
ciety on or before the second Tuesday in aie 
1803. 
147. CLEARING THE TURNPIKE AND 
OTHER Roaps IN WINTER FROM Mup, 
AND IN SUMMER FROM Dust. Tothe per- 
son who shall discover to the Society the most 
effectual and the cheapest method, verified by 
experiments, of clearing the turnpike and ether 
roads of great resort, in winter from mud, and 
in summer from dust, or most effectually pre- 
venting the accumulation of either; the gold 
medal, or fifty guineas. 
148. For the second best account; the silver 
medal, or twenty guineas. It is required that 
an accurate account of the method used, and 
every expense attending it, together with satis- 
factory certificates of its being effectual, be de- 
livered to the Society on or before the first 
Tuesday in March, 1803. 
ee Ee 
PREMIUMS OFFERED FOR THE AD- 
VANTAGE OF THE BRITISH COLO- 
NIES. 
149, NutmecGs. For the greatest quantity 
of merchantable nutmegs, not less than ten 
pounds weight, being the growth of his Ma- 
jesty’s dominions in the West Indies, or any 
of the British settlements on the coast of Africa, 
or the several islands adjacent thereto, and 
egual to those imported from the islands of the 
East Indies; the gold medal, oy one hundred 
guineas. Satisfactory certificates, from the go- 
vernor, or commander in chief, of the place of 
growth, with an account of the number of trees, 
their age, nearly the quantity of fruit on each 
tree, and the manner of culture, to be produced 
on or before the first Tuesday in December, 
1802. 
150. CLoves. For importing into the port 
of London, in the year 1802, the greatest 
quantity of cloves, not less than twenty pounds 
weight, being of the growth of some. of the 
islands of the West Indies subject tothe crown 
of Great Britain, sor any of the British settle- 
ments on the coast of Africa, or the several 
‘islands adjacent thereto, and equal in goodness 
to the cloves brought from the East Indies; the 
gold medal, or fifty guineas. Samples, not 
less than two pounds weight, with certificates 
that the whole quantity is equal in goodness, 
together with satisfactory certificafes signed by 
the governor, or commander in chief, of the 
place of growth, with an account of the number 
of trees growing on the spot, their age, and the 
manner of culture, to be produced to the So- 
ciety on or before the first Tuesday in January, 
1803, 
151. PLANTATIONS OF BREAD-FRuUIT- 
Trees. Tothe person who shall have raised 
in any of the islands of the West Indies subject 
to the crown of Great Britain, or in any of the 
British settlements on the coast of Africa, or 
