17976] 
Paris, the notice of fome improve. 
ments in the inanufactory of Englith 
ribbands (fo called), This procets, 
by moving ten “jes (Rocking tools) 
at once, in equal and unequal numbers, 
by means of a regulator which is made 
to mount at pleafure, and a curious ba- 
lancer, will enable the artift to deter- 
mine, within three pennyweights, the 
quantity of filk neceflary to make a mea- 
{ure of ftuff given, fuch as of the ell, 
&c. “Twenty pieces of ribband, of the 
fineft quality, may be made at once, 
by a very ordinary workman, or woman. 
An apprentiflage of three months is 
fuficient to learn the nature of this 
trade. 
_DesaupRay defcribed, at the fame 
_ fitting, a new matter for {pinning with, 
furnithed by two indigenous and com- 
mon cottoneous plants, which TREHET 
has difcovered a method of preparing. 
Mixed with a third part of cotton or 
flk, it {pins extremely well, and may 
be uied in the manofacture of very good 
ftuffs. Specimens of this matter, and a 
pair of itockings of it, were prefented 
to the Lyceum. Another plant fur- 
nifhes a kind of vegetable wool, nearly 
refembling animal wool, and which 
wouid furpafs it for mattraffes, efpecial- 
ly in the cafe of certain difeafes, where 
the patients imbibe an unwhoilefome in- 
fluence from mattraffes of wool. This 
wooliy matter, mixed with rabbit’s hair, 
may be ufed in making felts, or even 
hats ; one of this defcripiion, and which 
had been worn for twelve months, was 
exhibited on the table. “Che minifter of 
the interior has fince granted to Trehet 
four acresof ground, for the fake of re- 
newing his experiments on a larger 
{cale. ‘ 
ROULLAND prefented, and defcribed, 
at a fubfequent fitting, the model of a 
pair of haw intended to reftore life 
to perfons drowned and in a fwoon, 
by drawing out the vitiated air feated in 
their lungs, and replacing it with ordi- 
nary air; or even with oxygene, or vital 
air, if neceffary; at the fame time pro- 
ducing the motion of the lungs, inde- 
pendently of the concurrence of the pa- 
tient,, to the very inftant when his 
ftrength fhall return. The idea of thefe 
bellows ts borrowed from the ‘Sourual de 
Medecine. RouULLAND, however, has 
conftructed the initrument whereby it 1s 
to be realifed, apd thus carried it to per- 
feétion. “Phe experiment was fubmitted 
to public infpection, a bladder being 
made up to reprefent the lungs: The 
bellows contains two bodies (like doubles: 
Varieties, Literary and Philofophical. 303 
winded bellows) which have no interior 
communication with each other; they 
have, however, a common vent, which 
is a kind of tube introduced into the 
noftrils of the patient. When the bel- 
lows is opened, one of its fides becomes 
filled with ordinary air, by means of a 
fucker placed next to the moving leat, 
while the other fide becomes filled, atthe 
fame time, with the vitiated air of the 
lungs, through the medmm of a 
fucker placed at the head of the tube. 
When the bellows is blown, the refpi- 
rable air, introduced into the firft fide, is 
impelled into the lungs; and, by the 
fame operation, the vitiated air, with 
which the fecond fide is filled, is forctbly 
expelled by ‘the other fuckers. This 
movement being feveral times repeated, 
and flowly, agreeabiy to the nature of 
human ref{piration, new air was always 
introduced into the lungs, and the oid 
extracted as foon as it became yitiated, 
according to the procefs of nature, tili 
the afliftance of art wasno longer necef~ 
fary. 
GARDEUR, pafte-board maker, of 
Paris, has lately manufa&tured a pafte- 
board, which may be ufed as a fubfti. 
tute for t/img. As the materials, how- 
ever, of this manufacture are coftiy, he 
replaces'it by akind of ftuff refembling 
felt, compofed of the filaceous parts of a 
number of plants, as the fun-fiower, &c. 
mixed up with iron-drofs pounded, and 
other fubftances made ufe of in the com- 
pofition of cements.. his - matter is 
worked up in fheets tothe thicknefs of 
an ordinary flate or tile, and is cemented 
and held together by an oil of a dificca- 
tive nature, and plattered over with an 
oil-coloured ftratum or layer. Experi- 
ments have been made of this new-in- 
venied tiling, wherein it effectually re- 
fitted all the rigours of the feafons, cold, 
thaw, rain, and heat. The colour of 
thefe tiles is black; but. this might be 
eafily exchanged for one lefs gloomy. 
Citizen BRARD has initituted an of- 
fice, at the Hofpital of Invalids, at Pa- 
ris, for teaching to read and write fuch 
of thofe foldiers as had been mutilated in, 
the fervice, or had never received early 
inftru€tion. In fourteen months time, 
of 500 learners, 200 were put into a 
fituation to hold employments, which 
they foon procured, and by which many 
ef them are enabled to provide even for 
the fubfiftence of their families:. Such 
as have lott their right arm, can now 
Write with the left, with great eafe and 
dexterity, 
GAUTHEROT 












