s were made; That the length of the Cylindrical
pipe was 16. Inches; the Ball, about the bigness of a somewhat large
Walnut, and the Cavity of the Pipe by guess about an eight or ninth part of
an inch Diameter.

The First Experiment is thus registered. _March_ the 27th, in the Seal'd
Weather glass, when first put into the Water, the tincted Spirit rested at
8-5/8 inches; being suffered to stay there a good while, and now and then
stirr'd to and fro in the Water; it descended at length a little beneath
7-5/8 inches; then the _Sal Armoniack_ being put in, within about a quarter
of an hour or a little more it descended to 2-11/16 inches, but before that
time, in half a {260} quarter of an hour it began manifestly to freeze the
vapours and drops of water on the outside of the Glass. And when the
frigorifick power was arriv'd at the height, I several times found, that
water, thinly plac'd on the outside, whilst the mixture within was nimbly
stirr'd up and down, would freeze in a quarter of a minute (by a
Minute-watch.) At about 3/4 of an hour after the infrigidating Body was put
in, the Thermoscope, that had been taken out a while before, and yet was
risen but to the lowest freezing mark, being again put in the liquor, fell
an inch beneath the mark. At about 21/2 houres from the first Solution of the
Salt I found the tincted liquor to be in the midst between the freezing
marks, whereof the one was at 51/2 inches (at which height when the Tincture
rested, it would usually be, some, though but a small, frost abroad;) and
the other at 43/4 inches; which was the height, to which strong and durable
Frosts had reduced the liquor in the Winter. At 3 hours after the beginning
of the Operation, I found not the Crimson liquor higher than the upper
Freezing mark newly mention'd; after which, it continued to rise very
slowly for about an hour longer; beyond which time I had not occasion to
observe it.

Thus far the _Note-book_; wherein there is mention made of a Circumstance
of some former Experiments of the like kind, which I remember was very
conspicuous in this newly recited. For, the frigorifick mixture having been
made in a Glass body (as they call it) with a large and flattish bottom, a
quantity of water, which I (purposely) spilt upon the Table, was by the
operation of the mixture within the Glass, made to freeze, and that
strongly enough, the bottom of the Cucurbite to the Table; that stagnant
liquor being turn'd into solid ice,