Onderwys in 't Regte Gebruyk van het Hemels-Plyn
strekkende tot nut en vermaak der liefhebbers.
Amsterdam,
Jochem Hasebroek,
[c1722].
Large engraved celestial chart by Stampioen with a rotating printed paper ring (volvelle or rete) on an off-centre axis to indicate the part of the sky visible at any date and time and to make a variety of celestial calculations, all for the Netherlands' latitude of 52 degrees. With letterpress instructions by Calman on a separate slip at the right. The sky image 33 cm in diameter; the whole chart with the letterpress slip as mounted 49 x 61.5 cm. A string with a bead serves as a pointer for aligning the scales in the stationary and rotating parts. Coloured by a contemporary hand and mounted on contemporary boards covered with marbled paper, apparently by the publisher, so that it can be folded in half for carrying.
500 by 630mm. (19.75 by 24.75 inches).
1992
notes:
The chart is here in its third state, but we have located no complete example of any earlier version. The Boerhaave Museum in Leiden has the chart without volvelle or instructional text, published by Doncker, but the 1664 edition described in Doncker's advertisement clearly included the volvelle and instructional text. Perhaps the surviving chart is the 1684 version mentioned but not seen by Bierens de Haan, who provides neither a detailed description nor a source for his i...
bibliography:
Koeman IV, p. 5 (no location noted; cf. p. 153); Warner, Sky Explored, p. 260, no. 1c (no location noted; cf. p. 247); Alder Planetarium on-line database A-259; cf. Bierens de Haan 4516 (1684 ed., not seen: see his Bouwstoffen II, pp. 386 & 429 note 5); E.O. van Keulen et al., "In de Gekroonde Lootsman," item 4 & illustration between pp. 64 & 65 (1680/1696 Vooght/Van Keulen ed.); not in BMC Printed Maps; Zinner, Astron. Instrumente; NCC/Picarta; OCLC WorldCat.
provenance: