Theorem XVIII: the monad within the egg

Theorem XVIII: the monad within the egg

The Vessel as the central motif, with the Heavens, and the Sun and the Moon in a secondary part. From Monas Hieroglyphica.

Symbolica, 2026 Dee's Latin, put into English here: From our twelfth and thirteenth Theorems it can be gathered that celestial Astronomy is as it were the Parent and Mistress of the inferior. And: we shall see exactly such an Anatomy of our Monad, showing itself to us thus always in the light and life of Nature. The egg is the vessel of the work with the heavens drawn inside it, and Dee reads his glyph along its axis.

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An egg drawn in outline with the orbits of the planets inside it as dotted rings, the monad standing along its axis. By eye

The picture read whole, in the archive's words, from the sources quoted on the marks. Read on, and the picture follows: the motif under discussion keeps its colour.

‘Ex duodecimo et decimotertio Theorematibus nostris colligi potest, Caelestem Astronomiam, inferioris esse quasi Parentem et Magistram’: from our twelfth and thirteenth theorems it can be gathered that celestial astronomy is as it were the parent and mistress of the inferior. The figure that follows is an egg.

The egg is the vessel. Alchemists called their sealed flask the philosophical egg, because what happens in it is a hatching, and Dee draws the shell in a single outline, broad end down, standing on the page. Nothing marks it as glass; what marks it as a vessel is what is inside it, which is everything.

Inside the shell the heavens are drawn as dotted rings, the orbits of the planets nested one in another, with an inner oval round the sun. The signs stand on the egg's axis, Saturn and Jupiter in the outer rings, then the sun with Mars, Venus and Mercury about it, and the moon at the foot. ‘Talem ad amussim nostrae Monadis conspiciemus Anatomiam: in Naturae lumine vitaque sese sic nobis semper ostendentem’, we shall see exactly such an anatomy of our monad, showing itself to us thus always in the light and life of nature. The glyph's anatomy is the solar system, and the solar system fits in an egg.

The sun's circle is the centre of the inner oval and the moon's crescent is the foot of the whole egg, so the two lights that the fourteenth theorem says the mastery hangs from, ‘Ex Sole et Luna, totum hoc pendere Magisterium’, are here the centre of the yolk and the bottom of the shell. Between them, on the one line, the rest of the planets.

The figure is small and sits in the text; the archive holds it at the size of the page, with the line of the theorem visible beneath it.

Decoded: every motif is marked, and each mark carries the reading its author gave it, quoted from the text, or says that it is observed on the picture and not read. The reading above is the archive's own, made from those sources and no others.

Record

Source
Rights
Public domain. The book was printed in 1591 and everyone who made it has been dead for more than three centuries; the holding institution places no further restriction on its scan.
Restoration
None. A 700 by 1125 pixel web copy made from the source file; nothing painted, nothing upscaled.
Series
Artist
John Dee, mathematician, astrologer and adviser to Elizabeth I, 1527 to 1608 or 1609, who designed the hieroglyphic monad and wrote the theorems that explain it
Titled here
Theorem XVIII: the monad within the egg. Internet Archive catalogues it as: Theorem XVIII: the monad within the egg, from Monas Hieroglyphica, Frankfurt 1591
Checked
the Internet Archive item metadata, 4 September 2026: Dee as author, Frankfurt, Wechel and Fischer, 1591, in the Getty Research Institute's alchemy collection. The figures are small woodcuts set in the text and are kept at the size of the scan; nothing is enlarged. The quotations were read off the page images. Not seen in the hand. The inscriptions were read again at the size of the archive's own image on 5 September 2026 and the marks measured on that image; Hebrew and Greek lettering is given in transliteration in the quotations.
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Cite
Symbolica, “Theorem XVIII: the monad within the egg”, John Dee, 1564, this printing 1591. thesymbolica.com/work/theorem-xviii-the-monad-within-the-egg/