JB/106/042/003

Click Here To Edit 19 July 1798 Temperatures
N<hi rend="superscript">o</hi> 7
VI

rendered so by the breathing
of the workmen
employd in the Frigidarium.

Perhaps, in order
to compensate for the
increase of temperature
produced by the
opening of the doors
and the continuance
of the pers operators,
throughout the hot
season, large accumulations
of ice in
higher levels might
be necessary.

The Air being admitted
at a low
temperature, the greater
the space within
the shell, the less it
would be affected by
the several causes
of calefaction.

In the Experimental
Frigidarium
Brick Binns with
Barrels the interstices
betwixt the Barrels
being filled with
ice.

The endeavour might
be to preserve the temperature
as between
Barrel and Barrel
as uniform as possible,
and to such the differences
that took place
spots of those endeavour
would afford
the construction required
having Register Thermometers
for as many
of the Barrels as could be afforded

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Birds and Hares
&c might perhaps
go into putrefaction
with their own heat
if taken in on a
hot day, unless
cooled by water.
Observe the increase
of temperature produced
in the water
by each cooling,
and reduce it
by putting in ice.

After standing
a suffucient time
in the water to cool, the article
might then
be hung up to
drain, either in
the Cooling room
or the Frigidarium
itself

To keep down
the temperature
in the Frigidarium
stow ice in a horizontal
racks as
high up as it
can be stowed.
The air below
in proportion as it
is heated by the bodies
of the operators
&c will rise
to the top and melt
the ice, which as
it melts will drop
down and cool the
air below.

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VIII
Thermometers

Fluid red coloured
spirit.

Tube large & long
with a long scale
but short -say
20 belowabove &
to to 80.

White board with
black figures.

Thermometer liquor
the more sensible
the better and
as no heats above
80 will require to be
indicated, the only
objection to spirits
seems out of the
question here.

Thermometer that
shows the highest
rise & lowest fall
Six's. see Themometer
Encycl. Brit.
compounded of
Mercury & Alcohol
with a floating
Index in the inside
that rises but will
not fall. - & vice
versa.

But see 1799Edinburgh
'Transactions in Phil.
May No for a
perfect Registering
Themometer.

See Cary's Print
Shop. Fleet Street
for a graphical
plan of Registration.

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IX

Time for transferring
to the Cooling
Room the cooled
part of the 24 Hour
Quantity of ice
requisite for bringing
down 1lb of meat
to the temperature
for preserving

Temperature of
the air, say 62

Temperature of
the ice or ice-
cold water say 32

Difference 30

1lb off water at
32 will then
bring the meat
down to 2/30=15

One other 2/15=7 1/2
22 1/2

Tube 22 1/2 from
62, remainder is30) 1/2

But the water which
in cooling the meat
to 47o has raised
itself to 47 will
serve to cool another
lb of meat
from 62 to 54 1/2

Entrance into the
Cooling Room by
a passage with a door
at each end. Both
Doors to draw to by
a weight: and for
additional security,
best the outer door
should be left open or a jar
purposely to save
trouble or through negligence
the inner
door might be so
connected with it, as
not to open unless
the outer door were
already shut.

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X

Articles (cheap) for Trial

1. Rabbits

2. Lights & Livers &c

3. Sprats -

4. Wild fowl-bought
at a time of glut

5: Milk

6.Flowers.

A tub for quantites 7. Strawberries & Mulberries of each. to be
taken out in parcels
every day for a certain
time.

A Register Thermometer
in each Tub:
and perhaps in the same
tub a common Thermometer
at a different
elevation.

Try Have duplicate
parcels of each, laying
one in the Balneum
all the time -the
other in the Frigidarium
after cooling in the Balneum.

Decoy men would
contract for Wild Ducks
at 10d a couple.
Goldsmiths Nat.Histy
XI.125

Milk the best article
for trial, being more
disposed to spoil than
any other. Meat in
a Cellar under the present
uncertainty of
temperature often
kept 6 weeks or more
Milk is never kept so many days.

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Identifier: | JB/106/042/003 "JB/" can not be assigned to a declared number type with value 106.
Date_1	1798-07-19	Marginal Summary Numbering
Box	106	Main Headings	frigidarium
Folio number	042	Info in main headings field	temperature no 7
Image	003	Titles	consideranda / thermometers / articles (cheap) for trial
Category	plan	Number of Pages	2
Recto/Verso	recto	Page Numbering
Penner	jeremy bentham	Watermarks
Marginals		Paper Producer
Corrections	jeremy bentham	Paper Produced in Year
Notes public		ID Number	34630
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