The Rhode-Island Republican. [volume] (Newport, R.I.) 1809-1841, 1839-03-20

received leler fom sir John Harvey,
which is quite pacific in lis character.
The drafted militia, at Houlton, under
Gen. Hodsdon, already amount TO 1000
men, aud the volunteers, at the Areos,ook
nre 500 IN nuraber, under Col. Jarvis. The
two encnmpmen:s are fifty miles apart.-
Both militia and volunteers are engaged in
making road between them, by which
communication will be greatly facilitated.
/ Curious INvENTIoN.-Tbe foIloviog oc-
count ofa very singular invention we ex-
tract from recent English papers. ..
J The DAGuERoTYrr.-The long research.
es mnde by NJ. Daguerre To produce the
wonderful effects Of light aud shadow which
he exhibits in his diorsnss have ended in
his present inventions. Briefly 10 explain
II; in enables him to combine with the
camera obseura an ENGRAVING pocer, that is
by an sppnratns at once TO receive rehec-
tion of the scene without, and to fix its
forms and tinis indelibly on metal in char
oscwo; the rays Of the sun standing ia the
stead of burin, or rather of acid ; for the
copies thus produced nearly resemble aqun.
llnta engraVlngs. exquisitely toned. With
the government he is in treaty for the sale
Of his secret; the value fixed upon il being
three hundred thousand francs. The dis
covery is authenticated past the power Of
question, by the testimonies of such men as
Blot, Won Humbodt. and the reporter IN.
Arag".) II is necessary tn see The works
produced by the newly invented machine,
which is to be called the Dnguero,ype, fully
to appreciate the curiosity of the invention.
NJ. Daguerre, who took every pains To sat-
lsfy and inform me, 80 far as was possible.
men,ioned the years which il had cos, him
to perfect the invention. The earlier
sketches Tor rather refeetions) which he
mnde, some four years since, have ~ slight
hazIness, this defect he has now entirely
overcome. Some of his last works have
the force of Rembrnnd's etchings. He
took them in all wea,hers,-I may say M
all hohrs, for h- showed me u sketch of
\olre Dame made in a pouring rain, (he
time occupied by The process being length
ened under such unfavorahle circunstances,)
aud sketch procured by the moons light.
which required twenty minutes far its com.
pleion. As nigh, be suspected, the inyen-
t'"n, comparatively speaking, fails where
moving objects are concerned. "The fol-
'"ge OF trees, once again To- quote Nj. Arnga,.
" from lis always being more or less arita-
led by the air. is often hut imperfrcily rep
re reso"'r.'. l., -"s &c ,Lu views "a hose is
faithfully gwen, save the head, which he.
never ceased moving--in another "A decrof-
'tur, all but the arms, which were never
SUI. But that there are excepiinn. ! can
es'ity. In one view Of the Boulevard du
Temple, taken from NJ. Dagurrre's own
'esIdence, coach aud horses are in,rodur-.
"a With The most literal and I;ncaI ex.ct-.
'ess. The subjects which struck me mos,
we're, view on one of the Quais a view
IL The Louvre, aud those Of Notre Dame.
Inc invention, II is obvious. will he
'hIefy applicable To still life-rhat is. to-
subjects &c. The reporter to.
nc Academy, however, after p' intiuy out
he Immense advantage Of such a process
travellers-whom it enables, under the
most perilons circumstances of position or
emperatnre, to obtain fac-simile of apv
esired scene or monument of antiquity
bJects to the invention, that there is still
anl'ng to It's results something to be given
The hand and the eye of the artist. NJ.
'aguerre describes the process as verv sim
e' ana completely attainable by any per-
IN OF common Judgment, and with reason
Die care. The machine too is so little
imbrous, that he says he has stood upon
e bridges to use it, and has been hardly
'ticed by the passers by. He intends to
Init the public to see his sketches in tho
nrse Of a fortnight, when perhaps, | may
we something more TO tell you of SO Gu
'us mud interesting discovcry-Corres-
ndence Of Athengum.
The scientific folks of Paris are busted
endeavoring to find out the composition
the plate by which N. Daguerre is ena-
ID to obtain an exact representation Of
y object or scene. This plate, placed on
camera obscnrs, receives from the i'm
igement light certain impression, varying
;ord'ng TO the intensity (; SO, that, in a.
ut quarter OF an hour, the Cathedral of
tire Dame, for example, engraves itself
-fectly on the plate. II WAS at 6rst sup
'ed to be cblorure of silver, known to be
cepllble of change from the effect Of
ht; hut on this substance light produces
'de, and riee rersd, nor is The effect per-
nsni. On NJ. Daguerre's composition,
the contrary, dark spots on the object
duce corresponding shade, and that ia
ry grsdation of iiur.-The moons raw
no effect in the chlorure Of silver :; j,
on VI. Daguerre composition, and re-
duces its own image perfectly.
Morning Chronicle.