#3 d 
“the first Tuesday in December, 1888 ; 
as may be deemed of consequence; the 
gold medal. 
A full account of the methods emploved, 
and of the expenses attending the same, 
and certificates of the sundry matters statc -d 
to Be prodaced on or before the second 
Tuesday in Janvary, I8It. : 
ooN. B. Such of the f foreguing | premiums as 
are noi already mentioned to be continued Fi jor 
tivo Lp, are to bé extended to that period, 
on similar conditions. 
: sie SS 
PREMIUMS ~ FOR... DISCOVERIES 
‘AND IMPROVEMENTS JIN. CHE- 
MISFRY, DYING, AND MINERA- 
LOGY. 
55. PRrservine SEEDS OF VEGETABLES. 
For the best methed ef preserving the Seeds 
of plants ina state fit for vegetati oaienger 
time than has hitherto been practised, oaul 
methdd being superior to a ny known to the 
public, and verified hy su fivient trial, to be 
communicated to the Society on or beth re 
tiie 
gold medal, or thirty guineas. 
56. Preventine THE DRy-Rovr in Tr M- 
BER. To the person who shall discover to 
the Society the cause of the drv-rot in tim- 
ber, and disclose a certain metiod of. pre- 
vention superior to any hitherto knowns the 
gold medal, er thirty guineas. 
The accounts of he cause, and methed of 
prevention, confirmed by repeated experi- 
ments, to be produced to the Seciety on or 
before the second Tuesdayin Der. 1869. 
ST. Preserving sarreo Proyisrons 
FROM BECOMING RANCID OR RUSTY. To 
the person who shaH discover to the Society 
the best, cheapest, and most efficacious me- 
thod. of preserving salted provisions from 
growing rancid or rusty 5 3 the gald medal, 
or thirty guineas 
A full cori sane of the method, with 
Proper certificates that it has been found on 
repeated trials, to answer the purpose in- 
tended, to be produced to the Society on 
or before the first ay in February, 
1810. - 
» 68. Resistive WsALe L 
For disclaésinge to the Society an heme aer 
Method oi purify ne whale or seal o} 
the élutinsxs matter that incrusts the Tes 
of lamps, and extinguishes the light, though 
frliy supplied with the gok d metal, or 
fift + suineas. . 
It is required that the whole of the pro- 
cess be fails aod fairly disciésed; im order 
that satisfactory pexperiments may be taade 
by the Society to determine the valis of 
the:claim; and cerfificctes that not ies ban 
twenty gallons have becn purified zecarding 
to the process delivered in, ine vier sth 
tbo gations of the7oil, 
Liwe gallons so reined, te be nroduc-d 
Pe the Soci ae on ‘or, before the .second 
Tuesday in Febru ary, 1820. ae 
-. 59. Mannea troriwe Tarnow Cacinz Es. 
To the person who s2all discover io the So- 
ee Sea) 
fal 
pee 
4 
ss 
5 
3%. 
tig 
a . 
Be 
§ 
Proceedings of Learned Societies. 
_souip ‘ora FRomM TREACLE. 
ints unpur ified Modi : 
— 
ciety a method of hardening or - otherwise 
preparing tallow, so that candles may be 
made of it which will barnas clearand with 
assmall a wick as wax candles, without ran- 
ning, and may be afforded at aless expense 
than amy at present mate with spermaceti ; > 
the gold medal, or thirty guineas. 
Certificates that 1191b. of such tallow have 
been made into candles, and 12Ib. of the 
candies made thereof, to be produced tothe 
Society on or before the second Tnesday 
in JaniatyyAeliO. ee 
60.. CAnpnrs 
Sunsrawces. To the person. who shall dis- 
cover to the Society éhe best method of 
making candles of resin, or any other sub- 
stance, fit for common us*, 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 pre=_ 
pared, with an account of the process, to be 
delivered to the Soriety on or before the first 
Tuesday in December, 1809. 
6!. Meraov oF SEPARATING SUGAR INA 
To the per- 
son who shal} discover to the. Society the 
best method of separating sugar from trea- 
cle, in asolid form, at such an expense as 
will render it 
the gold medal or fifty guineas. 
A quantity ef the sugar so prepared, in 28 
solid form, not less than thirty pounds weight, 
with an account of the process, and ceriijfi- 
cates that not less than one hundred weight 
has been prepared, to be produced to the 
Society ov or before the first Tuesday in 
Februar y, 1810. 
62. IncreAstne Stray. To the person 
wero shail invent and discover to the Society - 
a method, verified by. actual experiments, of - 
increasing the quantity or force of steam, in 
steam-engines with less fuel than has hitherto. 
been employed, provided that in general - 
the whole amount of the expenses in using 
steam-enginesmay be considerably lesseneds, 
the gold medal, or thigty guineas. 
~ 
To be communicated to the Society on or 
before the first Tuesday in January, 1810. 
-. 63. SunerrrurEe FoR ‘Tax: To the per- 
son who shall invent and discover. to the 
Society the hest substitute for Steckholm 
tar, equal in all its properties to the best of” 
that kind; and prepared from materials the. _ 
produce of the united Kingdom and its’ Co- 
lonies; the cold medal, orone hundred eni-. 
reas. A ‘quantity of the substitute, notless 
ie one hundred w eight, with ‘certificates 
at at Jeast one ton has been maoufactured, 
hat it cam be afforded ata price. not 
and 
exceeding that of the best foreign tar, to-, 
gether with a account of the process, to be 
delivered to the Seciety on or before the 
first Tucsiay in’ March, 1510. 
~G4, PREPARATION oF TAN. *To the per- 
sen who shail prepare, in the most concen-~ 
trated form, so as to he easily portable, and_ 
at a price applicable’ to the purposes. of 
mab ufacturers, the larg est quant mys not lees 
Frou RESIN OR OTHER 
advantageous to the public 5. He 
t 
\« 
2 
