by its weight to have retain'd
four ounces of the Nitre, yet when it was carefully Lixiviated, even with
scalding Water, the Laborant could get out but about 5 grains of Salt, that
would pass through the Filtre: & that it self I judg'd by the Tast to be
rather of a Nitrous Quality than of a Lixivial. With which it agrees well, that
we[altered from 'it'] did not find
this Salt to produce a yellow Precipitate with the Solution of Sublimate, as
Fixt Alcalies are wont to do.
[Retrospective marginalia:]
An Experiment of
cold
3
Tbd
To resolve a Question concerning the Cause & manner of
Glaciation, we
<took>[replacing 'suspended'] a small spherical Glass,
<&> filld it with common Water, & then took off the
slender stem, & clos'd the Orifice of it, that the whole vessel might be
the more easily cover'd, by the Oyl of Turpentine wherein it was to be
immers'd.
[ 'In' deleted]
In[altered from 'this']
<this> Liquor (which we chose, as
[ 'much' deleted] not subject to freeze with an ordinary degree of
Glaciating Cold) we suspended the foremention'd round Bubble, so as that it was
every way cover'd with the Oyle, & then we plac'd
<it> in our Frigorific Mixture, the
<containing> Vessel; which was of Glass, that we might see what
should happen, & but slender, that the Glaciation design'd might the more
easily be made. And accordingly in a very short time we found, that thô
the Ambient Oyl of Turpentine continu'd altogether fluid, yet the
[ '[approximately 1 character]' deleted] Water in the Globe was
quite frozen, & had by its expansion
<burst, & in many places
crackt visibly crackt>[replacing 'crackt'] the little vessel that contain'd it.
[Retrospective marginalia:]
4
Sp. weight of {sulphur}
vive
Tbd
Very fine Sulphur vive brought from Germany
weighed |
in the Air |
306 gr. |
|
in Water |
152 gr. |
So that its proportion to an equal bulk of Water was as that
of 2-1/77 to 1.
[Retrospective marginalia:]
5
Tbd
{ounce} iv of Quicksylver, {ounce}
ii of Salarmoniac, & as many of Flower of Sulphur,
being well ground together were sublim'd in an Urinal fit for the purpose. This
being broken after the Operation was ended, the elevated part was mix'd again
with the Caput mortuum, & the Sublimation was
reiterated. This was done once more, so that the Matter was sublim'd thrice in
all. And at the second time there was added to the Mixture
<of> fresh Sulphur & Salarmoniac {ana} {half} {ounce}.
The Work being done, we had in the bottom of the Subliming Urinal