Quaternarii Pythagorici

Quaternarii Pythagorici

The Triangle and the Pyramid as the central motif. From Monas Hieroglyphica.

Symbolica, 2026 Dee's Latin, put into English here: Of the Pythagorean Quaternary. Every possible transposition, 24; the Pythagorean sum, 10; the addition of the parts in every way gives 30. The figure is the tetractys of one, two, three and four, whose sum is ten, drawn as arcs rather than as the usual triangle of points, and Dee makes it the arithmetic of his glyph.

Tap a motif on the picture, or a line below. Its note opens under the line, with the reading its author gave it.

  1. Primary motif

The numbers one to four set in a row and joined by arcs beneath, their sums written along the arcs, the figure of the Pythagorean fourfold. 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.

‘Quaternarii Pythagorici’: of the Pythagorean quaternary. The tetractys, the triangle of ten points the Pythagoreans swore by, one, two, three and four in rows, is here drawn as a line of four numbers with arcs beneath.

Dee unfolds the triangle into a calculation. The four numbers stand in a row; under them arcs join the neighbours, and their sums are written on the arcs, three, five and seven on the first tier, four and six on the second, five on the third, with fifteen, ten and five set at the left where each tier is added. The note beside it gives the totals that matter to him: ‘Omnis possibilis Metathesis, 24. Summa Pythagorica, 10. Omnimoda partium additio, dat 30’, every possible transposition, twenty four; the Pythagorean sum, ten; the addition of the parts in every way gives thirty. The triangle is still there, in the ten, and Khunrath will build the same four rows out of the letters of the Name.

The figure sits in the text of the Monas and is kept at the size of the page.

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 1007 by 656 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
Quaternarii Pythagorici. Internet Archive catalogues it as: Quaternarii Pythagorici, 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, “Quaternarii Pythagorici”, John Dee, 1564, this printing 1591. thesymbolica.com/work/quaternarii-pythagorici/