_ January, 1805. 
ce « 
~ 
1804.) 
diate supply of water in case of fire, or for the 
means best calculated to prevent or extinguish 
accidental fires in buildings, superior to any 
now in use; the gold medal, or thirty guineas. 
Certificates of the method having been prac+ 
tised with success, with a full description 
thereof, to be delivered to the Society on or 
before the second Tuesday in Jan. 1805. 
165. Bontnec anion Biuasrine Rocks, To 
the person who shall discover to the Society a 
more simple, cheap, and expeditious method 
than any hitherto kuown or in use of boring 
and blasting rocks in mines, shafts, wells, &c. ; 
thegold medal, or thirty guineas. Certificates 
of the method haying been practised with suc- 
cess, with a full description thereof, to be de- 
livered to the Society on or before the first 
Tuesday in January, 1805. 
166. Herartxc Rooms ror tHe PUR- 
poses oy Manuracrunsrs. To the person 
who shall invent aud discover to the Socicty a 
method of heating rooms, superior.to any 
hitherto known or im use, and at a moderate 
expense, for the purposes of painters, japan- 
ners, and other manufacturers, so as to avoid 
the necessity of iron or copper tunnels going 
through the rooms to convey the smoke, 
whereby thé danger from such tannels may be 
prevented ; the gold medal, or forty guineas. 
A model, or complete drawing and descrip- 
tion of the method, with certificates that it has 
been successfully practised, to be delivered to 
the Society onor before the last Tuesday in 
March, 1805. . 
167.. Improyev Vextitarion. To the 
person who shall invent and produce to the So- 
ciety a mode of permanently ventilating the 
apartinents im hospitals, wockhouses, and other 
crowded places, superior to any now known 
or used ; the gold medal, or fifty guineas. 
A model of the apparatus, and a full account 
ef the means by which the effect has been pro- 
duced, with proper certificates, to be delivered 
to the Society ou or before the last Tuesday in 
February, 1805. 
1638. Preventixnc Acctpents FROM 
Horsk8 FALLING WITH TWO-WHLELED 
CanxiaGes. To the person who shall invent 
and produce to the Society a method superior 
to any litherto known of in use, to prevent 
accidents from the falling of horses with two- 
wheeled carriages, especially on steep decli- 
vities ; the silver medal, or fifteen guineas, A 
model of the apparatus, and a full account of 
the means by which the effect has been pro- 
duced, with proper certificates that the same 
has been used with success, to be delivered io 
the Society on or before the second ‘Tuesday in 
SS Se ae ke 
Roavs. ‘othe person who shai i * 
the Scciety the most eftectus 
Method, yeriti¢d by: acts 
Premiums in Mechanics. 
583 
combining the waterialy ordinatily employed ‘ 
in making or repairing roads, so 45 to form them 
of the hardest consisteuce by their cementing 
properties, or by an artificial mixture of earth, 
stones, &c. altered by heat or any other mode; 
so as to form an even, hard, and’ durable car 
riage-road, not liable to be injured by heat or 
rain ; the gold medal, or fiity guineas, It is 
required that an accurate account of the me- 
thod used, and every expense attending it, 
together with satisfactory ccrtificutes of is 
being effectual, be delivered to. the Society on 
or before the first Tuesday in Marchy 1805. 
170, Crinansine Cuimnies, ‘Lo-the per- 
son who shall invent and produce to the So- 
ciety the most effectual mechanical or other 
means for cleansing chimnies from soot, and 
obviating the necessity of children being em- 
ployed within the flues ; the gold medal. 
171° For the next in merit; the silver 
medal, The mechanical, or other means, with 
certificates of their having ‘been wed with 
proper effect, to be produced to the Society on 
or before the first Tuesday in January, 1805. 
172. Curmxres CLuansen. to the per- 
son who shall during the year 1804 cleanse, 
or cause to be cleansed, the greatest number 
of chimnies, at least two stories high, not 
fewer than three hundred, by any mechanical 
or other process, which does uot require the 
employuieut of boys within the fiaes; the gold 
medal.  Certijicaies, signed by not less than 
two-thirds of those housekeepers on whose 
premises the said means have been employed, 
and an account of the process, to be produced 
to the Society on or before the first Tuesday in 
February, 1805. 
173. Yo the person who shall cleanse, or 
cause to be cleaused, the next greatest number 
of chimnies, not fewer than one hundred and 
fifty, upon similar conditions tv the above ; the 
suiver medai, ; 
174. Wiaisinc tux Bonizs or Persox 
WHO HAVE SUNK UNDER Warer. To tho 
person who shall invent ant produce to the 
Society a cheap and portable drag, or other 
machine, superior to those now in use, for tlie 
purpose of taking up in the best and most 
expeditious manner, and with the least injury, 
the bodies of persons who have sunk under: 
water; the goid medal, or thirty guineas. 
The drag, or machine to axswer the purpose 
intended,’ to be produced to the Society, on or 
before the first Tuesday in March, 1905. 
a 
PREMIUMS OFFERED FOR THE AD-. 
VANTAGE OF THE COMMERCE OF. 
THE UNITED EMPIRE. 
175. TsKtnc Porrorses. To the people 
in any boat or vessel, who, in the year 1304, 
shall take the greatest number of porpoises on 
tae coast of Creat-Britain or Ireland, by gum, | 
