JB/106/042/002

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Temperature 19 July 1798
II Consideranda

1. Magnitude

2. Form

3. Situation.

4. Means of lighting

45. Means of
confining temperature,
as
between the
whole and the
external atmosphere

5. So, between division
and Division.
Not necessary
except afterwards for the
purpose of experiment. [+] [+] The lowest consistent with fluidity will be the object

6. Means of lighting
without prejudice
to the confinement
of temperature

7. Means of preserving
uniformity
of temperature
where temperature is
wanted.

8. Means of effecting
change in temperature,
where
change is wanted
i:e: elevation, for the depression
never can be wanted.

9. Means of indicating
temperature
at any
given minimal.

10. Means of recording
changes of temperature
without inspection
Sci Col IVII.

11 Means of keeping
up uniformity
of temperature as
between stratum
& stratum of the
same mass of water]

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Consideranda

12 Means of discharging
the Water
as it melts, without
admitting
heat from the atmosphere
- the tube of communication
turned up
with or without a
cock.

{Line diagram}

N.B. Per Rumford,
Heat in
water will not be
conducted downwards)

13. Means of
pulverising the
Ice

14 Quantity of
Ice requisite for
bringing down the
article to the temperature
at which
it should be imagined
to the Frigidarium
Sci. Col. IX.

15. Calculations
shewing the influence
of the presence
of a living human
body of a given bulk in raising the
temperature in a
room of given bulk
by continuing in
it a given time

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IV

Might it not be
best to confine
our endeavours
at first to the
securing as low
a temperature as
is consistent with
fluidity, and
to mark the
maximum of
temperature taking
place notwithstanding,
and,
if deterioration
were thus to be prevented,
reserve
the experiment of
the different degrees
for a subsequent
period after the
feasability of the
process in a commercial
view had
been esstablished?

Quere in a
Hemispherical Frigidarium of
50 foot radius
would it be most
advantageous to
fill the 40 above
with floors, or to
leave it empty?
No horizontal temperature
fence will can be
airtight, but a
brick one.

Small Bar - in
the upper part
of the hemisphere
where the lightest
and warmest air woud
bit?

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The whole space
above the level
allotted for the
Frigidarium
might be accessible
from without
by means of the
ascending arch
or chain of arches
and thence might
be employd freely
without any disturbance
to the
temperature of
the Frigidarium
underneath.

If the upper
space above the
occupied level of the
Frigidarium were
left unoccupied
would not that
have a mass of
air at a high
temperature that
would be lowering
the temperature
of the subjacent
strata?

Answer-
The whole vacuity
might be filled
with air at a
low temperature
i:e: when the thermometer
was at or below the
freezing point.

The space above
would form be of
use as a receptacle
for the warm air
rendered

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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

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Identifier: | JB/106/042/002 "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	002	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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