1809.) 
hide having the grain side thereon, and 
the ether piece having the flesh side 
thereon, The said pieces may be far- 
ther manufactured fur all the uses and 
applications, well known to those who 
are conversant with the fabrication and 
consumption of hides and leather. 
» as 
MR. WEDGWOOD's (OXFORD-STREFT), for 
an Apparatus for producing several 
Original Writings, or Drawings, ué 
one time. 
The principle of this invention con- 
sists in so disposing of two or more sheets 
of paper, or other writing materials, so 
as that they may be written upon at once 
with dotible pointed pens, or with two 
pens: or styles so combined, as to be’ 
held in the hand, as a pen is commonly 
held ; that is, without being in any way: 
connected: with machinery. The princi- 
ple admits of various modes of applica- 
tion. If it be required, that both the 
papers to be written upon should be in 
the usual form, these papers. are con- 
nected by machinery, whichis described 
with drawings in the specification. But 
if the usual form: of one of the papers, 
namely, that intended for receiving the 
office fao-simile, or that which is to be 
preserved as a copy by the writer, can 
be dispensed with, then Mr. Wedgwood 
uses what he calls linear copying paper, 
which consists of paper cut out, or 
pierced in a particular form. 
When a fac-simile of a writing upon 
the linear-paper is wanted, he lays un- 
derneath a leaf of the linear-paper a 
sheet of _writing-paper; then with the 
points of the penna-duaplex so adjusted, 
as that when held in the hand with a 
proper inclination for writing, they wi: 
touch parallel parts, the one of a bar of 
the linear-paper, and the other that 
portion of the writing-paper appearing 
Review of New Musical Publications. 
i) & 
through the pierced spaces of the linear- 
paper; then proceeding to write, one 
point of the penna-duplex is thus broagit 
into contact with the linear-vaper, and. 
the other with the writing-paper under. 
neath the linear-paper. When the pena 
na-duplex is moved in the act of writing, 
the two points thereof moving in parai~ 
lel directions, they nece ssarily produce 
two exact fac-similes; the one on the 
linear-paper, and the other on the spaces 
of the sheet of writing-paper, seen 
through the pierced spaces of the linear 
paper. Yo render the operation more 
convenient, Mr, W. lays under the hand 
a leaf of card-board, or any other flag. 
substance, which serves to keep the bars 
motionless and flat to the paper under-. 
neath, or he confines to the-edge ofa 
leaf of the papera heavy clamp, ‘by the 
pressure of which the linear-paper will 
be regularly stretched over then writings 
paper. 
If it be desired to write upon two 
skins of parchment, or upon a skin of 
parchment and a sheet ef paper, then a 
different kind of machinery is made use 
ef. Inthe use of this, the parchment or 
paper 15 to be made into a cylindric form, 
by haviug the top and bottom. thereof 
joined together by paste, &c. 
put, and being strained, it is fit for 
writing on. The two pens move at once 
on two separate pieces of parchment, 
paper, &c. and give two fac-similes.— 
Whea one pair of lines are finished, by 
turning the handle of the machine, the 
lines written will pass, the'one downs 
wards through the space between the 
edges of the straining frame; and the 
other upwards, so as thereby to keep one 
copy of the writing always in view. To 
keep the lines at any given distance, 
wheels and spring catches may be ane 
nexed fo one of the pullies. 
REVIEW OF NEW MUSICAL PUBLICATIONS. 
Se 
I. of Mwart’s Divieipts forthe.Piano forte. 
jee composed by the Author with full 
Band Accompaniments Obiiguto, arranged for 
the Convenience of Amateurs, for the Pjano- 
forte, Ly Dr. Crotch. 
HIS respectable and desirable pub- 
lication is offered to the public at 
4s. per Number to Subscribers, and 6s. to 
Non-subscribers, Certainly, to use the 
words of the. publishers, -** among the 
many classical productions of this justly- 
celebrated aban the Concertos ‘stand 
very high.” The rare opportunities; howe 
ever, cf hearing them with the full or- 
chestra accompaniments, having deprived 
the amateurs in general of forming a just 
judgment respecting their merits, I Messrs. 
Ciancheitini and Spereti, in order to gra- 
tify the lovers of Mozart’s compositions, 
have undertaken to publish them in their 
present form, The arrangement of these 
pieces, 30 far as we may judge from our 
koowl  dge 
Within — 
the cylindric sheet a straining board i 
a aa ae a Ca ha ie Fe ne ae ge mee 
— eee 
