1800. |, 
has publifhed his Profpectus of his Hiftory 
of Mufic, and the moft celebrated Com- 
pofers, with their Biography and Portraits. 
It is to confit of fifty volumes in folio ; 
the price of fubfcription to be 100 ducats 
of Holland. The text is to be in four 
Janguages, viz. German, French, Englith, 
and Italian. 
The Ukate, which forbids the fubjects 
of Ruffia from ftudying in foreign parts, 
is exercifed in full vigour. In No. 45 of the 
German Gazette of Peterfburg, it is men- 
tioned, that a Ruffian gentleman has been 
refufed permiffion to leave his fons to 
finifh their education in Pruffia. Notwith- 
ftanding all this, however, the Imperial 
Economical Society of Peterfburg conti- 
nues to occupy itfelf concerning public in- 
ftruction. It has juft publifhed, in the 
Ruffian language, the fecond and third 
number of a book for the ufe of the lower 
people, under the title of a Guide to the 
Country People. . 
Various experiments have been tried in 
the north of Europe, for difcovering fub- 
ftitutes for coffee. In Sweden, a powder 
has been ufed, compofed of the flour of 
rye, and yellow Englifh potatoes, which 
are a fweet fort. The ingredients are 
firft boiled, then made into a fort of cake, 
which is dried in an oven, and afterwards 
powdered. In Germany the different kinds 
‘of beet have been ufed; and the hip or 
fruit of the dog-rofe, roafted like coffee- 
berries, has been employed in union with 
the real coffee. 
A feries of experiments have been made 
in France, by VAUQUELIN, to afcertain 
the important faét of the higheft propor- 
tion in which tin may be fafely alloyed 
with lead inthe preparation of drinking- 
veffels, and veffels for meafuring vinegar 
‘and wine. From thefe it appears, that 
neither of the above liquors is capable of 
diffolving lead without the prefence of at- 
mofpherical air; but that the edge of the 
veflel, in contact with the furface of the 
liquor and air, will in a few hours be fen- 
fibly corroded. That the tin is diffolved 
firft, and that the precipitation of the co- 
louring matter of red wine is owing to the 
tin. That veffels for meafuring or drink- 
ing out of, may fafely be alloyed with a 
confiderable proportion of lead, provided 
‘they are kept clean; but that neither tin 
norlead fhould enter into the compofition 
of veffels in which wine or vinegar is to be 
Kept for any length of time. ‘The com- 
mon wine teft for afcertaining the prefence 
ofleadin wine, cyder, or vinegar, is imper- 
fect, as it precipitates not only lead but 
Iron. Ateft that will indicate lead but not 
Iron, is prepared as follows: To fixteen 
_ parts of calcareous liver of fulphur, and 
Literary and Philofophical Intelligence. 
a folution of iron. 
275 
twenty parts of cream of tartar, add fome i 
diftilled water, and fhake the whole in a i 
phial; pour off the clear liquor, which is iy 
the teft. A few drops of this put into in 
any fufpefted liquor will precipitate lead i 
of adark-brown colour, but will not alter 
M. Jucu has been making a number of 
experiments which feem to prove the exift- 1 
ence of gallic acid in Gum Arabic : if this 
is really the faét, it accounts fufhciently 
for another lately difcovered property of 
this gum, viz. the precipitation of Mercu- 
ry from its folution in nitrous acid. 
On the laft sth complementary day, the i 
pupils of the National Inftitution of the Co- i 
lonies (ci-devant College de la Marche) were 3 
publicly examined. The numerous aflem- 
blage of perfons of both fexes prefented ' 
a variety of three colours, blacks, mulat- 
toes, and white creoles, united. Upon 
the walls furrounding the hall, were af- 
fixed pieces of writing which ‘attefted the 
progrefs of the fcholars. In the middle | ai 
was placed the portrait of the black gene- bi 
ral, ‘Touffaint-Louverture, whofe children 
are among the number of the pupils of 
this inftitution. Citizen LECHAT, a young ii 
negro, opened the examination by a dif- i 
courfe, delivered with grace, upon the be- | 
nefits of a revolution, which had reftored 
the rights of mento fuch a great clafs of 
mankind, who had been condemned, by 
tyranny and avarice, to flavery. In his 
difcourfe he made an apoftrophe to the 
other colonial pupils ; but in turning his 
eye to his young comrades, reftored to 
liberty, his heart became’ too full, and ‘All 
the tears flowing from his eyes produced i) 
the fame effe&t on his auditors, whilft rei- 1] 
terated applaufes filled the interval till the _ | 
refuming his difcourfe. ‘The pupils were W 
interrogated upon the Latin language, my- i 
thology and the mathematics, to all which 
they anfwered in a manner highly fatisfac - | 
tory to the audience. At length the mi- ‘il 
nifter of marine diftributed the prizes of any 
talents and wifdom ; he embraced all the Hh 
pupils, fome of whom had obtained three 
or four prizes. It was remarked of a 
young black, that, on receiving a crowns 
agitated by the fentiment of joy, and em- 
barrafled by his modefty, he placed the i 
crown onthe head of the minifter, and the iil 
minifter repeated his embrace amidft loud Aili 
applaufes. The National Inftitution for HAL 
the Colonies is under the fuperintendance 
of Citizen Coisnon. It is propofed to 
place the pupils, who are expected every ) 
day to arrive from Corcyra, in this infti- \ 
tution, and all thole of the tranf marine 
departments, it having been found much 
better to unite the means of inftruction, 
in the fame eftablifhment, than to create 
SIN ee new 
