582 
use; the silver medal, or twenty guineas. Cer- 
tificates of the making such paper, an account 
of the process, and one ream of the paper, to be 
produced on or before the second Tuesday in 
January, 1803. 
132. Taxinc Porpotszs. To the people 
in any boat or vessel, who, in the year 1802, 
shall take the greatest number of porpoifes on 
the coast of Great Britain, by gun, harpoon, or 
any other method, not fewer than thirty, for 
the purpose of extracting oil from them; the 
gold medal, or thirty pounds. Certificates of 
the number, signed by the persons to whom 
they have been sold or delivered for the purpose 
ef extracting the oil, to be produced to the 
Society on or before the last Tuesday in Ja- 
nuary, 1803. 
133. O1L FRom Porporses. ‘To the per- 
son who shall manufacture the greatest quantity 
of oil from porpoises taken on the coast of 
Great Britain, in the year 1802, not less than 
twenty tons; the gold medal, or thirty pounds. 
Certificates of the oil having been made from 
porpoises actually caught on the coast of Great 
Britain, and two gallons of the oil as a sample, 
to be produced to the Society on or before the 
last Tuesday in February ,1803. 
eS a 
PREMIUMS IN MECHANICS. 
134. GuneowpeR-MiLts. To the per- 
son who, in the year 1802, shall invent and 
bring to perfection the most effectual method 
of so conducting the works of gunpowder-mills, 
in the business of making gunpowder, as to pre- 
vent explosion; the gold medal, or one hun- 
dred guineas. Certificates and accounts of the 
method having been put in practice in one or 
more gunpowder-mills in this kingdom, and 
that it promises, in the opinion of the best 
_judges concerned in such works, to answer the 
purpose intended, to be produced to the So- 
ciety on or before the first Tuesday in Feb. 1805. 
N. B. As an encouragement to persons to 
turn their thoughts to improvements of this na- 
ture, if any should be made on the present me- 
thod of conducting the business of gunpowder 
making, which fail short of the total preven- 
tion of explosion, and they are sent to the So- 
ciety for the saké of humanity, the papers so 
sent in will receive due consideration, and such 
bounty or reward will be bestowed thereon as 
they appear to merit. 
135. Transit-INSTRUMENT. TO the per- 
son who shall invent and produce to the Society 
a cheap and portable transit-instrument, which 
may easily be converted into a zenith-sector, 
capable of being accurately and expeditiously 
adjusted for the purpose of finding the latitudes 
and longitudes of places, and superior to any 
_ portable transit-instrument now in use; the 
gold medal, or forty guineas. To be produced 
en or before the last Tuesday in Jan. 1803. 
: 
Premiums tn Mechanics. 
[July 1, 
136. TAKING WHALES BY THE GUN- 
Harpoon. To the person who, in the year 
1802, shall strike the greatest number of whales, 
not fewer than three, with the gun-harpaons 
ten guineas. Proper certificates of the striking 
such whales, and that they were actually taken 
in the year 1802, signed by the master, or by 
the mate when the claim is made by the master, 
to be produced to the Society on or before the 
last Tuesday in December, 1802. 
137. Famity Mixx. To the person whe 
shall invent and produce te the Society the best 
constructed mill for grinding corn for the use of 
private families, or parish-poor; the construc- 
tion to be such as to render the working of the 
mill easy and expeditious, and superior to any 
hitherto in use; the gold medal, or thirty guie 
neas. The mill, and certificates of its having 
been used to good etfect, to be produced to the 
Society on or befare the first Tuesday in Fe- 
bruary, 1803, 
N. B. Cheapness and simplicity will be con- 
sidered an essential parts of its merit; and the 
mill, or the model, to remain with the Society, 
158. MacwiINzE FOR RAISING COALS, 
Ore, &c. &c. To the person who shall invent 
a machine for raising coals, ore, &c. from 
mines, superior to any hitherto known or in 
use, and which shall produce the effect at a 
less expense than those already Known or in’ 
use ; the gold medal, or fifty guineas. A mo- 
del of the machine, made ona scale of not less | 
than one inch to a foot, with a certificate that a 
machine at large on the same construction has 
been advantageously used, to be produced to the 
Society on or before the second Tuesday in 
February, 1803. . 
139. MacHINE FOR RAISING WATER. 
To the person who shall invent a machine on a_ 
better, cheaper, and more simple construction 
than any hitherto known or in use, for raising 
water out of wells, &c. from a depth of not less 
than fifty fect; the gold medal, or forty gui- 
neas. Certificates of the performance of the 
machine, and a model of it, on a scale of not 
less than one inch to a foot, to be produced tq . 
the Society on or before the first Tuesday in 
February, 1803. ; 
140: MACHINE FOR MAKING BRICKS. To 
the person who shall invent the best and cheap- 
est machine for making bricks, superior to any 
hitherto Known or in use, whereby the labour 
and expence of making bricks in the usual 
mode, by, hand, may be greatly diminished ; 
forty guineas. A model, with certificates that 
a machine at large, on the same construction, 
has been used to good effect for the purpose of 
making bricks, and that at least one hundred 
thousand statute-bricks have been made theres 
with, to be produced to the Society on or be- 
fore the frst Tuesday in March, 1803. 
141. Boring anp BLastincG Rocks. 
To the person who shall discover to the Society a 
