582 Premiums, ir 
printers, by persons of either sex; the gold 
medal. To be produced to the Society en or 
beiore the second Tuesday in January, 1800 ; 
the pattern to which the premium is adjudged 
to remain the property of the Society. 
154. For the next im merit; the silver 
medal, on similar conditions. 
455, Coprern-PLatrE PaTFERNS FOR Ca- 
Eico-PrintEns. For the best pattern, in a 
new style, fit for the purposes of culice-printers 
for garment-werk ; the suver medal. To be 
preduced to the Society on or before ihe second 
"Puesday in January, 1805. ,The pattern to 
awhich the preminin is adjudged to remain the 
property of the Society. 
—r Se 
PREMIUMS IN MECHANICS, 
456. GuxnpowperR-Mitis. To the person 
who, in the year 1804, shail invent and bring 
to perfection the most effectual method of so 
conducting the works of gunpowder-imills, in 
the business of making gunpowder, as to pre- 
vent explosion ; the gold medal, or one han- 
dred guineas. Certijicaies aad accounts of the 
method having been put m practice In on¢ or 
more gunpowderanills i this kingdom, aud that 
it promises, in the opinion of the best judges 
eoncerned in ‘such works, to answer the pur- 
pose intended, to be produced to the Society on 
or before the first Tuesday nTeb. 1805. 
~ N.B. As an encousagement to persons ta 
turn their thoughts to improvements of this na- 
ture, 1f any should be made. on the present 
yuethod of conducting the business of gunpow- 
der making, which fall skort of the total pre- 
vention of explosion, and they are sent to the 
Society for the sake 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. ti 
457. Transit-INsTRUMENT. 10 the per- 
son who shall invent and prodace to the Seciety 
a cheap and portabte transit-lastrument, which 
may easily be converted: into a zenith-sector, 
capable of being accurately and expeditiously 
aéyusted, for the purpose oi fiuding the lati- 
tudes and icngttades of places, and superior to 
any postabie transitnstrument now In use}; 
the gold medal, or forty guineas. 
duced on or before the last Tuesday in Jan, 1805. 
453. Taxiwe WHALES BY TIE Gux-Har- 
poon. ‘Fo the person who, in the year 1804, 
shail'strike the greatest nuinber of whales, not 
fewer than three, with the gun-harpoon ; ten 
enineas. - Proper certificates of the striking such 
whales, and that they were actually taken im 
the vear 1204, signed by the master, or by the 
mate whee the claim is made by the master, 'to 
pe ptodiced to the Society on or before the last 
Tuesday iz December, 1804. 
459: Pamiry 3imun. To the «persom who 
shalbimvent and produde tet he Society the best- 
To be pro- - 
, T ¢ 
Alechanies.  [June, 
constructed mill for grinding! carn. for the use 
of private families, or parish-poor 5 the con- 
struction to be such as to render the working of 
‘the mil easy and expeditious, and superior to 
any hitherto in use ; the gold medal, or thirty 
guineas. ‘The mill, aud certificates of its having. 
been used to good effect, to be produced to the 
Society on or before the first Tuesday in Feb. 
1805,.. Cheapness and simplicity will be con- 
sidered as essential parts-of its merit; and the 
mill, or the model, to remain with the Society. 
160. Macniny vor natsine Coans;, Or», 
&e. &c. To the person who shall invent a 
machine for raising coals, ore, &c, from, mines, 
superior to any hitherto known or im 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 model of the ma- 
chine, made on a scale of not less than one inch 
to a foot, with a certificate that a machine at 
large on the same construction has been adwan- 
tageously used, to be produced to the Society 
on or beiore the second Tuesday in Feb. 1805. 
161. Improvep Warkinc-Wurri or 
Crane. To the person who shall invent an 
improved walking-wheel or crane, on which 
the weight and power of any person or per- 
sons shall be applied with the greatest safety 
and effect, and so contrived that the power can 
be varied according to the greater or lesser ‘ 
weight to be raised or lowered; the gold aze- 
dal, or thirty guineas. The model, on aseale 
of not less than one inch to a foot, with a pro- 
‘per’ certificate that the machine at large has 
been employed to good effect, to be produted 
to tlie Society on or before the second Tuesday 
in February, 1805. Seige? vy > aeighan 
4162. Macuixe ror Ratstxnc Warrr, 
-To the person who shall invent a machine on a 
pel 
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 feet ; the gold medal, or forty 
guineas, Certificates of the performance ot 
the machine, and a model of it, on ascale of 
not less than one.inch to a foot, to be produced 
tothe Society on or before the first Tuesday in 
February, 1805. 
463. Ex. Piers. To the person who shall 
invent and discover to the Society a substitute 
for the elm pipes now in common use dor the 
conveyance of water, which shall be cheaper, 
equally effegival, and more durable than any 
heretofore. employed ; the gold medal, or 
thirty guineas.” It isequired that one of the 
pipes so employed, an accurate dccount of the 
method used, and every expense attending it, 
together with satisfactory accounts of its being, 
efiectual, be delivered to the Society on or 
before the second Tuesday in January, 1805. 
164, Extrnaursuryc’ Fires. Tothe person, 
who shall) produce to the Socigty thé best’ and 
most effectual method of procurmg an‘imme- 
