Boschius’s Ars Symbolica, Circinus or Circular lines obtained with the Compass

Ornate engraving of a globe suspended within a circular frame, mountains in the background, with a banner above and a small 'MXXI' inscription below.

Composuitque regitque

It composed and governed.

“Compass opened and above the sphere.” – Jakob Bosch, Symbolographia, class 2, MXXI 1021.

Fragment of an old Latin scientific page with entries CXVIII and 99, listing phrases and abbreviations such as L. UNO IMMOTO and Abb. Ferrus.

Qua gressum extuleram refero

I return to the path I had taken.

“A compass pointing the other leg into the circle. One leg, motionless. Or a compass that tells the other leg to describe a circle.” – Jakob Bosch, Symbolographia, just ex index, class 1, 99.


Totum excurret in orbem

It will spread throughout the circle/world.

“Circinus with his cross, referring to the same figure.” – Jakob Bosch, Symbolographia, just ex index, class 4, 185.