, 1859-05-14


THE S7ErEoxoxpscors.- Claudet, tho yet
Gran photographer, has accomplished l'artlcu-
f,,I, result in lis ar, enabling him tu produce
tlc stcrrt,scupic illusion by the agency Ut SUI.
81. picturc. In thc ccntre of large blAck
SCREEN there is u space iilled with square III
1ru:1nd +,'Ass, upon which, by some IISat man,
arcI behind tat screen il thrown Il MAGnaslcd
photographic image representing landscape,
i ,u.rtrait, .lr Guy athcr object. When tic Oh
sry.r luuks naturally ut that object or picture,
witl, the two .:rs, without the help Of any op-
1i>al instrument. an extraordinary phenomenon
ta;;rs ,tce-the picture is scrn in perfect re-
lief, ~ when Two different pictures are l'okta
nt through Il ste:tt>rule. II is not necessary
IL be at i fixed distance from the picture; II
;,l..y I,c examined as well 1T ten feet Is ut one
foot, ~ III ordinary picture, without tue least
ta,.uc to 1hc eyes. Although considerably e'l.
lar:cI y the instrument itself, tue picture may
,a,.,.itir still more by Using large convex leu
sr<; and two OF three persons at once can *
amino il with ta,e greatest ease being tole also,
! whic looking, 10 exchange any remarks, or to
cxnrr>s the Sensations suggested by tlt picture
-:.1, advantage which Is denied by tie nsr Of
the common ,1crctscopc. Rs this remarkable
| discovery, ~ ClauIrt has solved problem
Which has always bern considered ns Ill 'mpoS-
| sil,ilit, iv scientific inen-f,r thc' sttreomono-
sc,pc, bf its very name. must sound like par
;llux t., the ears Of all those wilo are vrrscd IN
| III. knowledge Of the principles of Dtnocu'ar
vision, until they tuye had the eplt"rtunity Of
| rcpca,inr the experiments by which, N. tlaudct
| !,l> found new f4c, which they had not no-
! tjcrI ,,r explained before. This NEW Fact Is.
tl:at the imaye the ground giass nt tlit cAill-
! era uhsrura produces the ilusinn Of relief. lsut
tllr phenomenon does not take Ilace II the IN
ase is received OIL raper. When the medium IL
ground glass, tic rays rc{ractcd by the varions
| ,,uiyts III tir lens THnu that surface, arc "nfy
visible when they are incident in linz colntf-
inr with the ortic axis. ~ that the rays
emerging fron ,hc ground glass. and enieri't:
tho rirt.t eyc, arr uily tl,usr Which have bcsu
rcfr.ctcd rt1iouely in the same direction, hy
tic left side Of tIlc ohiec,-glass: and thosc cn-
,rins tl5r Lett c,e. are u:ils those rcfracteo by
the rich. fi4se OF tue oil jcct- glass.
EXTRAORDINARY UlscoyEay. Ia0te; e;;r0riiHy
>,AhJ.-}n ano{l,cr pan of oNr c"lus's.s wsA be
found tue details al very singular discover.
Of N. II. Scott hv means Of which sounds may
bc made to record themselves. whether those
sounds are those Of mnsical instruments, u
emitted by the VOICE in slnsin. or speaking
Prot. Wi,cntstonc. during Ills recent visit II
raris. was invited by 1l~ Abhr Moi.no to i'll
s;,cct the papers on which these souad hac
nrintrd themselves, and is said to have beer
:rrratly surprised and pleased will. what he saw
The mark produced nn ihc paper by particu
lar nr,e is invariably the same; 20, also, if :
person speaks, tic tone Of voice in which III
sp,Aks is faithfully recorded. As yet no rrac
! teal advantage has {rcn obtained By this dis
tov.ry: but ii. Scott is sarguine that, in cours
Of time, h. will so fur Improve his arparatu
that il will bc eapanIc Of printing q speech
which NAV BE- written of verbatim, to the grea
saving Of The labor Of Parliamentary reporters
--l%otorapii'. .kn9.} -Nut.