Book 1, containing the astronomical correspondence between T. Brahe and Wilhelm IV, Landgrave of Hesse.

Letters in Latin or German, those in German being followed by their Latin translation.

Colophon, with printer's device, on p. [2] at end: Vranibvrgi, Ex officinâ Typographicâ Authoris. Anno Domini. M. D. XCVI.

Numerous errors in pagination.

Signatures: *⁴ (:)⁴):(⁴ ()⁴ )(⁴ A-2Q⁴.

T.p. verso (p. [2]) and p. [8] blank.

"Errata typographica": p. [1] at end.

Title vignette, initials, tail-pieces.

Description of Uranienborg Castle and Stjarneborg Observatory, built by T. Brahe (1576-84), with engraved drawings and plans of the buildings, and a map of the Island of Hven, in the Sound, where they were located. (p. 219-264)

Burndy. Science, 4.

Exhibit page opening : 260-261 1995/05/30 through 1996/05/10 William E. Baxter SIL Exhibition Gallery, NMAH SDS / "Science and the Artist's Book".

Extra-illustration: author's hand col. portrait on verso of p. [2]

Imperfect copy: p. [7-8] of preliminaries misbound before p. [3-4]. First four leaves are on stubs.

Provenance: said to be Brahe's personal copy; Zach. Conr. ab Uffenbach (bookplate)

Dibner gift.