Enige zeldzame oude rekenboekjes in band R. 14.10 van het museum Plantin-Moretus

Abstract

SUMMARY: This article gives a description of the first seven booklets as they occur collectively in one single binding R. 14.10 in the library of the Plantin-Moretus Museum at Antwerp. 1. Judocus Clichtoveus, De mystica numerorum, Paris 1513 ; containing a title page which is different from the one of the copy described in Smith's Rara arithmetica. 2. Johannes Huswirt, Enchiridion novus algorismi, Cologne 1502; an unknown edition of this arithmetic. 3. Anonymous, Algorismus novus de integris, without place or date of publication; an edition, not the same as the one described in Smith's Rara arithmetica. 4. Theodorus Tzwifel, Opuscula duo, Cologne 1505. 5. Johannes Enclen de Cusa, Algorismus proiectilium, Zwolle 1502; the earliest arithmetic printed in the Netherlands. 6. Thomas Bradwardine, Arithmetica, Paris 1505. 7. Petrus Cracoviensis, Computus astronomicus, without place or date of publication; a work not mentioned anywhere. These seven booklets contain all the subjects which, in the beginning of the 16th century, were looked upon as the whole art of arithmetic, namely ; theory of numbers and mystery of numbers, proportions, practical arithmetic with the operations for whole numbers and fractions, counter reckoning, and the computus. It would be interesting to know how they have collectively found their way into one single binding, and who has been the owner ; we, however, have not succeeded in finding this out. The only thing that can be stated is that the above-mentioned collective binding dates as far back as the 16th-17th centuries.