OF NICOLAUS

COPERNICUS OF THORN

ON THE REVOLUTIONS

of the heavenly spheres,

IN WHICH THIS AUTHOR RESTORES THE MOTIONS
OF THE FIXED AND WANDERING STARS, FROM ANCIENT
and recent observations.
Furthermore, he has added clear and practical tables, from which
the student of mathematics will be able to calculate
these same motions for any given time
with the greatest ease.

The printer's mark of the Henricpetrina press. A hand emerges from a cloud on the right holding a heavy hammer, which strikes a rocky outcrop or anvil, producing a large burst of fire and sparks. To the left, a face representing a wind personification blows from another cloud toward the fire. The scene is set in a jagged, rocky landscape.

BASEL, FROM THE WORKSHOP