egrees of Coldness in
differing Regions, by such Thermometers, as are not subject to the
alterations of the _Atmosphere's_ gravitation, nor to be frozen.

5. Whether, in Cold, the diffusion from Cold Bodies be made more strongly
downwards, contrary to that of Hot Bodies: Where is delivered a way of
freezing Liquors without danger of breaking the Vessel, by making them
begin to freeze at the bottom, not the top.

6. Whether that Tradition be true, that if frozen Apples or Eggs be thaw'd
neer the Fire, they will be thereby spoil'd, but if immersed in cold water,
the Internal Cold will be drawn out, as is supposed, by the External Cold;
and the frozen Bodies will be harmlesly thawed? _Item_, Whether Iron, or
other Metals, Glass, Stone, Cheese, &c. expos'd to the freezing Air, or
kept in Snow, or Salt, upon the immersing them in Water will produce any
Ice? _Item_, What use may be made of what happens in the different waies of
thawing Eggs and Apples, by applying the Observation to other Bodies, and
even to Men, dangerously nipp'd by excessive Cold. Where is added not only
a memorable Relation, how the whole Body of a Man was succesfully thawed
and cased all over with Ice, by being handled, as frozen Eggs and Apples
are; but also the Luciferousness of such Experiments, as these: and
likewise, what the effects of Cold may be, as to the Conservation or
Destruction of the Textures of Bodies: and in particular, how Meat and
Drink {49} may be kept good, in very Cold Countries, by keeping it under
Water, without glaciation? as also, how in extreme Cold Countries, the
Bodies of Dead Men and other Animals may be preserved very many years
entire and unputrified? And yet, how such Bodies, when unfrozen, will
appear quite vitiated by the excessive Cold? Where it is further inquired
into, whether some Plants, and other Medicinal things, that have specifique
Vertues, will loose them by being throughly congealed and (several wayes)
thawed? And also, whether frozen and thawed Harts-horn will yield the same
quantity and strength of Salt and saline Spirit, as when unfrozen? _Item_,
Whether the _Electrical_ faculty of _Amber_, and the _Attractive_ or
_Directive_ Virtue of _Loadstones_ will be either impaired, or any wayes
altered by intense Cold? This Head is concluded by some considerable
remarks touching the operation of Cold upon Bones, Steel, Brass, Wood,
Bricks.

7, What Bodies are expanded by being frozen, and how that expansion is
ev