602 
the ore with sulpharic acid. 
tile metallic. acid. combmes with a weak 
solution of potash put into:the receiver, 
aid. tinges:.it crimson, From this red 
liquor, galtic acid, or infusion of galls, 
throws down a chesnut-browm precipi+ 
tate. Prussiates immediately change the 
red colour to a fine lemon yellow, but 
without any precipitation, Tne car- 
bonates do not precipitate the red solu- 
tion; but if-it- be heated: with a hettle 
alcohol, the. red colour changes to a 
green ;.a smell of ether is given out, and 
then the carbonates throw down a brown 
exide, which is soluble in muriatie 
acid. 
M., Krapaotu has discovered in> mi- 
ca sixteen per.cent. of potash. 
M. Bucnorz has-found that the i 
liferm beryl of Bavaria, is a true beryl, 
containing 0.12 of glucine. 
. AFRICA. 
The following.particulars.are the latest 
accounts that have- been received.of the 
state of the colony of Sierra Leone:— 
A number of plants received from the 
African institution, among. which are 
the vine and. white-and red rulbenries, 
arein.a-flourishing condition. ©The prin- 
cipal danger seems to be of their being 
exhausted by too rapid a growth, A 
piece of ground is m clearing, on. the 
highest part of the neishbouriniy: moun= 
tains, for the sake of trying a nione tem- 
perate climate. The employment a 
oxen m draught has beem attended, 
this colony, with great. success. Tie 
(aught oxen. have been fed_on. cassada, 
aid have been found to improve under 
their labour, and to produce better beef 
than any other cattle. The bark of the 
mangrove, of . winch a specimen. was 
lately ordered by the African Tnstitu-. 
tiop, has been tried: in this colony, in 
consequence of the suggestion. of the 
institution; and,.as far as can be col- 
lected. from the adh scale ow which the 
experiment has. been made, it appears 
to answer the same -purposes. as oak- 
hark in tanning. -A road is in consi- 
derable. forwardness towards -a favour- 
able situation on the banks of the largest 
 gtrearm-of water known to exist within 
the colony, where the soil appears su- 
perior to any in the neighbourhood of 
the present settlement, and likely to be 
favourable to the growth of hemp. 
Carriage roads: have also been made 
wishin, ‘the town of .George-town,. and 
measures have been taken for improving 
the watering-place. The governor hav- 
ing resolved, that:.the sum-of one hun- 
- 
Lrierety and Philosophical F. intelligence. 
~The volas 
“who 
[July 1, 
dred pounds shall be appropriated to 
‘the vitéring of sucl» prenviunis, as. shall 
uppear to ha conducive to the benefit 
of the colony, and of the British in- 
terests in Africa; the following are pro- 
posed :——-To each of the six Kroomen, 
shall first -introduce their wives 
and fannlies into this colony, and shall 
live with them in one’ or more distinct 
houses to each family, and cultivate not 
less than two acres of grownd for two 
years; five guineas. To the: person, ree 
siding within the colony, who, on the 
1st of January, 1611, shall exhibit the 
best bull, bis own property; five yui- 
neas. “ihe the person, who; on the same 
day, shall be proved: to: have most effee- 
tually applied himself to the art of a 
sadule, collar, or harness-maker; five 
guineas. To the person, who, om the 
4st of January, 1810, shall produce the 
mest coniplete cart or waggon, his ewn 
mannfacture, on two or more wheels, 
to be drawn by two or more. oxeny five 
guineas. Yo the person, who, ow the 
ist of January, 1810, shall be proved. to 
have most. constantly and effectually 
employed oxen for nding, and: to have - 
broken the greatest numberof oxen for 
the saddle; five. gnineas. To the per 
son, who, on the ist of January, 1810, 
shail be possessed of the: greatest nuim- 
ber of turkey-hens, not less than twenty= 
five; five guineas. ‘To the person, who, 
on the 1st of January, 1841, shall be 
proved to have most effectually applied 
hunself te the tradé of a tile-maker; five’ 
guineas. To the person, who, on the 
1st of January, 1811, shall have ‘calti- 
vated the greatest quantity of tobaeco, 
not less than four acres; five gutmeas. 
To the person, who, on the 1st of Ja- 
nuary, 184%, shall have cultivated the 
yreatest. quantity of rice, of the kind 
cated by the natives of Atrica, White 
Man’s Rice, not less than six acres; five 
guineas. ‘To the person, who, on the 
ist of January, 1814, shall have culti- 
vated the greatest quantity of ground 
nuts, not less than six: acres; five gis 
neas. To the person who shall first “ine 
trodece into this colony, a hving: ele- 
phant; a. gold medal value ten: guineas, 
or the same sum im money. To the 
person, who shall first introduce mto 
this colony, a male and female camel}, -or 
dromedary, fit for breeding, or two per- 
feet young ones of the same animals, - 
nrale and female; agold medal value ten 
guineas, or that sum itt money. 
give ipleasuie to: every liberal mind: to 
learn that..the natives of Africa are 
\ | greatly 
“Te wall 
- 
