. 
} 
1802.] 
livered on or before the first Tuesday in Febru- 
ary, 1804. 
65. The same premium is extended one year 
farther. The accounts and certificates to be de- 
Jivered on or before the first Tuesday in Febru- 
ary, 1805. 
_ 66. Rartstnc WATER FoR THE IRRIGATION 
oF Eanp. To the person who shall discover to 
the Society the cheapest and most effectual me- 
thod of raising water in quantities sufticient to be 
beneficially employed for the purposes of irrigat- 
ing land, superior to and cheaper than any other 
method now in use; the gold medal, or thirty 
guineas, A model ona scale of oneinch toa 
foot, with certifecates that a machine at large on 
the same construction has been used, specifying 
the quantity of water delivered «in galfons per 
hour, and the height to which it was raised, to 
be produced to the Society on or before the first 
of March, 1803. 
The same premium is extended one year far- 
ther. Cert?ficaies to be produced on or before 
the first of March, 1804. 
67. Cuttrure oF HEMP IN CERTAIN PARTS 
OF SCOTLAND. The Society for the Encourage- 
ment of Arts, Manufactures, and Commerce wish- 
ing to encourage the growth of hemp for the use 
of the navy, in certain parts of Scotland, com- 
prehending the whole county of Argyle, that 
part of Perthshire situated to the north of the 
river Tay, and west of the Military Road (see 
Ainslie’s Map of Scotland) leading from Logie- 
rait to the County of Inverness, and such other 
parts of Scotland as lie north of Inverness-shire, 
offers to the pérson who shall sow with hemp, in 
driils at least eighteen inches asunder, the great- 
est quantity of land in the above mentioned dis- 
trict, not Jess than fifty acres statute measure, in 
the year 1802, and shall at the proper season 
cause to be plucked the summer hemp (or male 
*hemp bearing no seed) and continue the winter 
hemp (or female hemp bearing seed) on the 
‘ground until the seed is ripe; the gold medal, or 
fiity guineas. : 
67*, To the person who shall sow with hemp, (in 
drills at least eighteen inches asunder) the next 
greatest quantity of Jand in the same above-men- 
tioned district, not less than twenty-five acres 
, Statute measure, in the year 1802, and shall at 
the proper season cause the same to be plucked 
as above-inentioned ; the silver medal, or twenty- 
five guineas. Certifecates of the number of acres, 
of the distance of the drills, of the plucking of 
the hemp, with a general account of the ‘soil, 
cultivation, and produce, to be delivered to the 
Society, along with fourteen pounds of the 
hhemp, and two quarts of the seed, on or before 
. the second Tuesday in January, 1803. 
rE 
PREMIUMS FOR DISCOVERIES AND 
IMPROVEMENTS IN CHEMISTRY, 
DYING, AND MINERALOGY. . 
__ 68. PreservinG SEEDS OF VEGETABLES: 
For the best method of preserving the seeds of 
‘plants in a state fitfor vegetation a longer time 
_ than has hitherto been practised, such method 
Premiums in Chemistry, Xe. 
577 
being superior to any known to the public, and 
verified by sufficient trial], to be communicated to 
the Society on or before the first Tuesday in De- 
cember, 1802; the gold medal, or thirty guineas. 
69, PREVENTING THE Dry-RoT in TIMBER, 
To the person who shall discover to the Society 
the cause of the dry-rot in timber, and disclose 
a certain method of prevention superior to any 
hitherto known; the gold meda!, or thirty gui- 
neas. The accounts of the cause, ard method 
of prevention, confirmed by repeated experi- 
ments, to be produced to the Society on or be- 
fore the second Tuesday in December, 1802, 
70. PRESERVING SALTED PRovISIONS FROM 
BECOMING RANCID OR RUSTY. ‘To the person 
who shall discover to the Society the best, cheap- 
est, and most erficacious method of preserving 
salted provisions from growing rancid or rusty ; 
the gold medal, or thirty guineas. A full de- 
scription of the method, with proper cerézficates 
that it has been found, on repeated trials, to an- 
swer the purpose intended, to be produced to 
the. Society on or before the first Tuesday in 
February, 1303. 
71. CLEARING FEATHERS FROM THEIR ANI- 
MAL O1L. To the person who shzll discover to 
the Society the best and most expeditious me- 
thad, superior to any hitherto practised, of clear- 
ing goose-feathers from their offensive animal 
oil, for the use of upholders, in making beds, 
cushions, &c. the silver medal, or twenty gui- 
neas. A quantity of such feathers unstripped 
and so cleared, not less than forty pounds weight, 
with a full account of the process, to be produced 
to the Society on or before the first Tuesday in 
February, 183. 
72, ReErinING WHALE oR SEAL OIL. For 
disclosing to the Society an effectual method of 
purifying whale or seal oil from the glutinous 
matter that incrusts the wicks of lamps and ex- 
finguishes the light, though fully supplied with 
oil; the gold medal, or fifty guineas. It is re- 
guired that the whole of the process be fully and 
fairly disclosed, in order that satisfactory expe- 
riments may. be made by the Society to deter- 
mine the validity of the claim; and certificates 
that not less than twenty gallons have been pu- 
rified according to the process delivered in, to- 
gether, with two gallons of the oil, in its unpuri- 
fied state, and two gallons so refined, be preduc- 
ed to the Society on or before the second Tues- 
day in February, 1803. 
73. MANUFACTURING TALLow-CANDLEs, 
To the person whoshall discover to the Society a 
method of hardening or otherwise preparing tal- 
low, so that candles may be made of it which 
will burn as clear and with as small a wick as 
wax candles, without running, and may be afford- 
ed at a less expence than any at present made 
with spermaceti ; the gold medal, or thirty gui- 
neas. Certificates that 1]2db. of such tallow 
have been made into candles, and 121hb. of the 
candles made thereof, to be produced to the So- 
ciety qn or before the second Tuesday in Ja~ 
nuary, 1803. 
74. CANDLES FROM RESIN oR OTHER SuUR- 
sTANCES. To the person who shall discover to 
