Note:
(1) see Plate 1 fig1.
(2) see Plate_1 fig
2.; -- Deliciae physico-mathematicae, oder, Mathematische and
philosophische Erquickstunden
by Daniel Schwenter and Georg Philipp Harsdoerffer. Reprint by Publisher:
Keip; Frankfurt am Main; Germany, 1991.
see pages
469 and
470 of the digitalized original version of
Herzog August Bibliothek
Wolfenbüttel
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