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AN ILLUSTRATED CYCLOPAEDIA OP THE GREAT EXHIBITION OP 1851.

83.

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■dh- fail to mako additions to the
able world. Again, how recent is
in ! In the great collection wore
>r. Montgomery to the India House,
avioivs experimentalists. Ycfc how
such as no other substanco could
hat our contemporaries, joining the

shall discover, among the various
Great Exhibition lias disclosed to
s. in the maimer of their utility, as

uses of life ■?

CHOSKTLL'S EOOT-"\VASIIER.

This is a very simple and convenient machine, in which tho principle of

tho Archimedean screw, has been ingeniously applied. The roots are

delivered int.. a h-invr. f-si-l pm-d th,------n ■> -i h< imed cylinder, having

two chambers, in the first of which they are cunliucd and washed by
tiirnin ; {'•■ li •■ '.'. ' i"- ' '! * 'l.v'■■■>■ i;i : w:i u *■;. jr.. ■ -'..'w i \, ..id. tho motion
is cevoraod, and thry pass into tho second chamber, which is eonstructed in
tho form of a spiral, alow; which they pass until they drop into a spoilt
outside. It is well adapted for c.irrots. potatoes, turnips, and most other

possible. I thir.

M constantly c

man draws fee

this also giv.

ed eonlempjatk

BANKS' TWIN STAIRCASE.
Hit. BakKS erected in one of the north-west ave-
„,s of tho Nave, a double or twin staircase, which,
^iiimmoat-ing with the gallery above, was daily
nde use of by the public. It was intended as a
Mcimen of what may be done in a small space
lure being hero two staircases, one for parties
^nditi- tho other for those descendm-, in the area
^pace-Vinel! would be devoted looue llighfc under
.4 ordinary method of construction. This contriv-

The

isirueiion i

on in cxti

■opertiesof the spiral t

the

spr:

rily stee,.
:ing no less than thir;v-ei-ht steps in each semi-
.calar flight, the diameter of the piano of which,
ics not exceed a dozen feet, whilst the height is
anty-three feet. The length of the step is four
st, and the length of the outer string-board,
irtv-seven feet. Each flight lands on a circular
inidor, which intersects two of the galleries of
icbuildinu' at right andcs with each other. The
dls are continuous ones, so that a poison asceud-
g and placing eithor hand on the rail, may con-
iwc with the same on the rail during the ascent,
1 die war across the corridor, and all the way down
■■ ihe opposite Sight. Tiiis invention exhibits con-
derable ingenuity, and is likely to be extensively

ad s

board, exhibited by the
intended as a specimen
if material upon a largo

Mk of :

,a Compa .

,- be done in t
substitute foi

:cused from investigating' its beauties as
piece of serviceable furniture,
■■ever, we have our misgivings about it or any ■
>g of the kind composed of this treacherous
:erial. The card affixed to this sideboard an-
aced that it is intended to exhibit the oanabilith-s
this material for ornamental uurposes, "parti-
ng- the long-soiiu'i.L-lor desiderahmi of a non-
ale pendant." Unfortimately, although this
iily-decorated structure ;u gutta-percha was earc-
y surrounded by a cordon, and had vet expe-
iced no wear and tear—we discovered svmptoms
li-docaion in part of the ''pendant" foliage, and
'«liin- like a "split" in a pear of no ordinary
Musions. (See p. 325.)

BOSEWOOD CABINET;—BY PETOT.

IS is a very showy piece of furniture in the Louis

' stylo, made of rosewood and tulip-wood, richly
^l with marcjuotrie and buhl. It is peeidiarlV
iachin style, and wants that solidity of rmpear-
» at lenst. which dhtmgutelics the U-n raigihh
aahtffc (Seo p. 333.)

is asks rwj.x staikcas:;,
 
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