Theatrum naturae et artis

First, the order of the elements, which they are said to have in nature, is exhibited through certain liquids (a) that constitute distinct regions.

(a) These are constructed either from different materials, and many combinations of these can be given; or they are produced from a single subject, e.g., wine lees, four or five, even if they have been mixed together as much as possible by agitation, they still collect themselves back into their own spaces.

On Fire.

1.

We consider the phenomena of burning fire, not
luminous fire. (a)

To this pertain all hot effervescences, examples of which will be provided by quicklime if water is poured upon it: iron filings with spirit of nitre and many others.

2.

Phenomena of luminous and burning fire, regarding the flame
(a) and its power, (b) regarding furnaces (c)
and other things. (d)

(a) Whose three regions, shape, and other things are noted.
(b) Which, whether in exciting a great crash or...