1804.] 
next greatest quantity of land in the same 
above-mentioned district, not less than twenty- 
five acres, statute measurey in the year 1804, 
and shall at the proper season cause the same 
to be plucked as above mentioned ; the silver 
medal, or twenty-five guineas, Certificates of 
the number of acres, of the distance of the 
drills, of the plucking of the hemp, with a ge- 
neral account of the soil, cultivation, and pro- 
duce, to be delivered to the Society, along with 
fourteen pounds of, the hemp, and two quarts 
of the seed, on or before the second Tuesday in 
January, 1805. 
—— reg 
PREMIUMS FOR DISCOVERIES AND 
IMPROVEMENTS IN CHEMISTRY, 
DYING, AND MINERALOGY. 
87. PresERVING Serps or VEGETABLES, 
~ For the best methods of preserving the seeds of 
plants in a state fit for vegetation a longer 
time than has hitherto been practised, such 
method 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 December, 1804; the gold 
medal, or thirty guineas. 
88. Prevenrinc tue Dry-ror in Tim- 
Ber. 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 me- 
dal, or thirty guineas. The accounts of the 
cause, and method .of prevention, confirmed 
by repeated experiments, to be produced to 
the Society on or before the second Tuesday 
in December, 1804. 
89. PRFSERVING SALTED Provisions 
FROM BECOMING RANCID OR Rusty. To 
the person who shall discover to the Society 
the best, cheapest, and most efficacious method 
of preserving salted provisions from growing 
rancid or rusty ; the gold medal, or thirty gui- 
neas, A full description of the method, with 
proper certificates that it has been found, on 
repeated trials, to answer the purpose intended, 
to be produced to the Society on or before the 
first Tuesday in February, 1805. 
90. Crearinc Fearuers FROM THEIR 
ANtmAL Ort. To the person who shall dis- 
cover to the Society the best and most expe- 
ditious method, superior to any hitherto prac- 
tised, of clearmg goose-feathers from their 
offensive animal oil, for the use of upholders, 
in making beds, cushions, &c. the silver medal, 
or twenty guineas. A quantity of such feathers 
unstripped and so cleared, not less than forty 
pounds weight, with a full aceount of the pro- 
cess, to be produced to the Society on or before 
the first Tuesday in February, 1805. 
91. Rerinine Wuate or Seat Orr. For 
disclosing to the Society an effectual method 
of purifying whale or seal oi] from the glu- 
Monrity Mac. No. 116 
Premiums in Chemistry, §c. 
577 
tinous matter that incrusts the wicks of lamps 
and extinguishes the light, though fully sup- 
plied with oil; the gold medal, or fifty guineas, 
It is required, that the whole of the process be 
fully and fairly disclosed, in order that satis- 
factory experiments may be made by the So- 
ciety to determine the validity of the claim ; 
and certificates that not less than twenty gallons 
have been purified according to the process de- 
livered in, together with two gallons of the oil, 
in its unpurified state, and two gallons so re- 
fined, be produced to the Society on or before 
the second Tuesday in February, 1805. 
92. ManuracrurinGc Tattow Canp es. 
To the person who shall discover to the Society 
a method of hardening or otherwise preparing 
tallow, 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 afforded at a less expense than any at pre- 
sent made with spermaceti; the gold medal, 
or thirty guineas, Certificates that 112Ib. of 
such tallow have been made into candles, and 
12lb, of the candles made thereof, to be pro- 
duced to the Society on or before the second 
Tuesday in January, 1805. Nie 
93. Cannes From REsIN OR OTHER SuBe 
stances, To the person who shall discover 
to the Society the best method of making can- 
dies of resin, or any other substance, fit for 
common use, at a price much inferior to those 
made of tallow only; the gold medal, or thirty 
guineas. Six pounds at least of the candles so 
prepared, with an account of the process, to be 
delivered to the Society on or before the first 
Tuesday in December, 1804. 
94, Mrrnop oF SEPARATING SUGAR IN A 
soLip Form rrom Treacie. To the person 
who shall discover to the Society the best me- 
thod of separating sugar from treacle, in a solid 
form, at such an expense as will render it ad- 
-vantageous to the public ; the gold medal, or 
fitty guineas. A quantity of the sugar so pre- 
pared, in a solid form, not less than thirty 
pounds weight, with an account of the process, 
and certificates that not less than one hundred 
weight has been prepared, to be produced to 
the Society on or before the first Tuesday in 
February, 1805. 
95. PROOF-SPIRIT. To the distiller who, 
in the year 1804, shall make the atest 
quantity, not less than one hundred gallons, 
of a clean marketable spirit, from articles not 
the food of man or cattle, equal in strength or 
quality to the proof-spirit now in-use, and at 
a rate not higher than the spirit produced from 
corn, or melasses; the gold medal, or one 
hundred guineas. Ten gallons of the spirit, 
together with proper certificates, and a full 
account of the expense and mode of making it, 
to be produced to the Society on or before the 
first Tuesday in January, 1605. 
96. IncrgastnG SrEam. To the persop 
4F 
