The Charlotte journal. [volume] (Charlotte, N.C.) 1835-1851, 1839-03-21

me I.d0oruf0Ty, FtTfnrfs, Stfk. UornS, DC.
The laboratory, or building 10 which
silk worms are to be raised must be of a
SIZE Proporiioned to the number Of worms
intended TO be kept. AS to its form and
structure, no precise rules can be given,
nor indeed, are any such necessary. Pro.
badly no two persons in Europe have labo.
ralories precisely alike nnd this fact goes
TO prove that no particular construction is
necessary. All that is required, is, that
the room should be Of sufficient size to
accommodate the number of worms intended
to be kept; that II should be provided with
replaces or stoves, for raising the temper.
AZURE when necessary, and drying the air,
and with yeBiilators IN the ceiling, and win.
dows on all sides, for the purpose Of VENT.
laiion and light. would however, recon.
mend wooden, instead of brick or stone build
lngs, as they are more easily managed as 10
temperature, than tho latter, .ad IN damp
weather, do not coudense aD3 collect water
from tho atmosphere SO much. In large
room, three or four small stoves at the ex.
IRENE ends and sides are very useful in Sc.
we're cold times, and also 10 very damp wealth.
or. Nenilators may be very useful made
al each side OF the room (if The house be a
frame, by leaving a srace one or two feet
deep and the whole length Of the room, and
/ reaching 10 the floor occupied BY long shut.
tcrs, hung by hinges on the upper sides.
la Ordinary warm dry weather, these shut
Iers may be raised. more or less, as desir
ed, aud ihus the room wei! supplied with
fresh air. During cold or damp weather,
he shutters, will, Of course, be kept closed.
\ large room ought to hsve several vents
tor the escape Of foul air 10 the ceiling.
/ These may bc nothing more than ordinary
trap doors, iso feet vide aud three feet
long, With shutters 10 close them az plea
sure. When these are opened, aud the ven.
ilaiors Al the SIDES also open, free current
Of AR ~Ill be kept OF through the hurdles,
aud thus the laboratory will be kept free
from impure air. They will be found par
t,cuary useful after a time OF rainy o.
damp weather. during which il has been NJ
o~ssaiy TO keep the room shut up. | have
found fire particularly useful n these damp
times, Nhou.h the temperature was sutii
cleully high of itself) in purifying the at
mosphcfc IN the room, gent rally make
q brisk blaze with light wood or shaylngs
10 the fire places or stoves. II has an nd
mrablc effect, not only IN expeIimG foul AR.
but 10 enheeulug the worms probably IL
drSug the Janp air. | have found much
IN re use ioy fire, during such time, than !
ever have On accoun, uf cold ~eaihcr.--
Indeed We seldom have weather cold
enough 10 DO harm at the season OF feeding
ever, It IS Of short duration. Permit me to
make one remark here, on the effect Of TEN.
peraturc on silk eertns. would not be
uude' stood as saying or believing, that the
temperature could be neither too high not
too low COR profitable result but ! do say
that silk worms are not affected more thar
other insects, by ITS variations. Indeed,
am pretty we'll convinced, that ordinary va
riations IL temperature are Is beneficial t'
the constitutions of six worms, as they arr
known 10 be to other animals. Extreme
only DO harm. Do we not find that con
,lnucd sameness OF temperature, especially .
warm, is deh,lI,atlna 10 our own systems
aud those oil ak other animals Look a
The people Of the tropics. The temperatur
there is seldom higher than with us IN sum
mer, but II is more equitable always near
is the same. ! need no, allude to the et
feet of it on the constitutions Of the people
. their imbeciIe, lanauid, lazy. spIrtlesS char
acters, are proverhIal. As We 60 north
where the variations of temperature are tn
greatest, we find the constitutions OF me-
and ANIMALS the most robust. Indeed, va
riatlons of temperature, and the agitation q
the atmosphere IN the form OF heavy winds
appear 10 be bene6censly provided by tn
Creator, for the we'll being of all his crea
, lures. Why, then, are silk worms sup
+. posed TO be exceptions 10 this rule ! lcan
$ not believe that they are and my eSpe
p renee supports me IN the belief OF their be
inr, like all other animals, only injured D.
extremes.
A pretty goo1 calculation may be mad
4 as to the size of the room required, from 70
\ fact. that room eighty feet loug ana ior'
wide will accommodate one Gnl On OF worms
. Instead Of one room of thst ,lie,2p~. =. toE
!. " by twenty, think, would % preiefaole
{ ns being more conveniently managed an
. being better adapted to proper d'r'sioa
4 the worms, which may then be separa'eo
h each days Matching being placed IN a dis
d ,lnct room. The temperature OF the room
can also be more easily regulated thoos
possibly at some greater expense oil sue''
!, In large establishments, ha'ch'"S ro''
a will be useful. This need not be large
If say twelve by fifteen feet. 1t should
g made close, with couple of windows, caps
e BILE Of be.rg perfectly closed by shutters
.loasnrn nnnd stove should be proYldel