B chapter.indd - Charles Babbage Institute - University of Minnesota

200
Erwin Tomash Library
Brentel, Georg Brentel, Georg
B 243
Publisher: Johann Meder
Edition: 2nd
Language: German
Figures: 1 large folding plates
Binding: contemporary vellum
Pagination: pp. [8], 48, 47–130 (misnumbered 47 as 45, 110 as
100), [2]
Collation: A–R 4 S 3
Size: 191x153 mm
Reference: Zin GBAL, p. 61, 271, 318, 324, 330, 339, 347,
353, 362, 364, 367, 371, 384, 395; Not in Pogg Vol. I
Georg Brentel was a painter and engraver who published
plans for sundials (the paper could be glued to boards to
make a dial). Little is known about him other than that
he was a pupil of Philipp Apian (the son of the famous
mathematician and instrument maker Peter Apian). See
Galgemair, Georg, in the Addenda.
Proportional compass, B 243
This expanded version of Brentel’s 1610 publication
treats the same basic instruments (sector and proportional
compass) but includes many examples of finding
volumes, gauging, weights and measures, etc.
The illustration of the sector has been redone and much
improved from the earlier work, but the one for the
proportional compass was little changed. Gaspar Schott
(Mathesis Caesarea, 1662) used this same illustration in
his description of the sector in 1662. An unusual printer’s
device occupies the final page.
Illustrations available:
Title page
Sector illustration
Proportional compass illustration
Gauging example
Printer’s mark and colophon
Printer’s device and colophon, B 243
Gauging, B 243