Pekin'.' the blast is discontinued;., But the Chineseibellows are
horizontal. The •workman is not aided, at any-pue time
by the. weight-©f the machine, but he is not burdened
with i t at. another. .It is an'advantage that the labour
should thusf^e equable and never eXeessive..^;>The bellows
are madedn the form of a bóx,.of which & moveable
door is so closely fitted; as when drawn,.back to create a
vacuum in thé box, into whichl'ita sGpnseqiJePG^fh^air
rushing with impetuosity, through an opening* guarded
by a valve, produceg ra blast through an opposite aper-
ture. The same is continued when the door is pushed
forward to the opposite-extremity-of the box,-the space
within it being diminished; and 'thëvair compressed,
a part of it is forced out through the-.same aperture.
When instead of a moveable door, a piston- ds - placed
within it, the air is compressed between the. piston and
both extremities of the box alternately, and forced out
upon the same principle:in both operations. This
double or perpetual bellows, is worked with equal, ease*
and with double the effect of the common or single bellows.
A model of the Chinese bellowSt Kot easily in-
telligible by a plate, has been brought to England, and
will be submitted to the curious=, ~r
The common plane of the Chinese carpenter is, liké
the anvil, distinguished b y some minute particulars,
which characterise it to be original; It differs not only
in.the way- of fixing the chisel in it, but in the mariner
in ,whiehdilMith$l%<És • The ends of the frame itself,
■serve,fekeryherë^ fQr^ha^.dles,hy which the, tool i^held “
and applied'To-,the wood)©!siwsh^ç-hs the çurface-is,- to he
made smooth but to the Chinese plane are fixed particular
handles across the Trame, ,by which, the,same purr
pos& is ^effected,perhaps with g^|er%ase.,, ,
The histories of the firstrremo,t^agesg©£ Chinese-transe
actions,^attrihq.tedhe ^most use|p^ia|fe'n^ojiSi ig%s®^§ty
to theifirs|.or?uldestjmpnai;cjhs of cou^ty^| It is ripqGh
.m05e-.prj0ba.hle that %gy*,\^re the^gradpahAf^HpIl^he
efforts-,* of- several obsqurejindiyidpals, ^-ho^felt^in the
own labours, and$n^^voured to^uppl^,
thoj-y/ant- of such mechanicahassistoné& and.Aat saib-
secprent histprians, not ahle^o^trac^, fch,e,.real tinvempr§,
substituted the mmes-of the encp&|age-rs^or1 grv®.mo,teks,©f
.thpsesarts.rç!{rh^e|4^, however,
not,;only.the inventions of first pecess>i.ty, fe ut. those
.decoration and refinement, were,fenp/jyni amopg^the.Chinese
,iu remote- a n tiq u ityT h e ,,a n n a ls of the empire
bear testimony,.!» the (fact, and it is q®nfirmed.by a eqn;-
sideration of jjjhté natural prqgjes^ p£j^.ps,e,..invenppns,
and of the st$te, off Chinesp,,.artists attjthis, time 1 In the
first discovery, and establishment of anJ;ai:|, ,-it is practiced
aukwardly, pyeu^with^theihelsp, of Tools and this, state
is supposed to he( long stationary* upti^at^'lepgth it advances,.
to its seqond^period, when.it becomes imprpyeç|>
and the artist is ejiahjed to avail himself to the utmost,of