4to, ff. [i], 57, , gothic letter in two columns, with a woodcut initial at beginning of text; occasional minor marginal dampstaining, wormhole in text sometimes resulting in loss of a letter (sense recoverable), but a very good copy in early nineteenth-century boards, red morocco lettering-piece on spine; slightly rubbed, upper joint cracked but firm; from the library of Robert Crewe-Milnes, 1st Marquess of Crewe (1858–1945), with bookplate.
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Lavacrum conscientie [omnium sacerdotum].
Rare edition of this popular late medieval treatise widely ascribed to the Carthusian monk Jacobus de Gruytrode (c. 1400–1475). Essentially a handbook for priests, with a significant devotional element, it was first published between 1487 and 1489. According to Theodor Petreius, Bibliotheca Cartusiana (Cologne, 1609), the actual author is Johannes Meskirchius (Messkirch, d. 1511), a monk at the charterhouse of Güterstein near Stuttgart (for Messkirch see R. Deigendesch, ‘Bücher und ihre Schenker – Die Bücherlisten der Kartause Güterstein in Württemberg’, in S. Lorenz, ed., Bücher, Bibliotheken und Schriftkultur der Kartäuser. Festgabe zum 65. Geburtstag von Edward Potkowski, Stuttgart 2002, pp. 93–115).
VD16 J 105. OCLC records only two copies outside Germany (National Library of Sweden and St. Bonaventure University). Not found in COPAC.
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Abriss der Algebra der Logik. Bearb. im Auftrag der deutschen Mathematiker-Vereinigung von dr. Eugen Müller. In drei Teilen. Erster Teil Elementarlehre.
First edition of the first of two parts of Schröder’s Abriss, edited by E. Müller and published posthumously in 1909 and 1910. Committed to the reform and development of logic, Schröder debuted in this field with a fundamental revision of Boole’s logic of classes, which emphasized the notion of the duality in logical multiplication and logical addition introduced by W. S. Jevons in 1864. ‘Although Jevons and Frege complained of what they saw as the “mysterious” relationship between numerical algebra and logic in Boole, Schröder announced with great clarity: “There is certainly a contrast of the objects of the two operations. They are totally different. In arithmetic, letters are numbers, but here, they are arbitrary concepts.” He also used the phrase “mathematical logic”’ (Encyclopaedia Britannica). Schröder’s declared aim in the field of logic was to facilitate the exact manipulation of relative concepts, and pave the way for a scientific ‘universal language’ built on signs rather than sounds.
with readings and music for the feast of St. Clement (23 November); a complete vellum leaf, double columns of 37 lines written in two sizes of an early gothic liturgical script, dark brown ink, ruled lightly with plummet, 2-line initials in red, rubrics, neumes on four-line staves; recovered from a binding and with consequent creasing and staining, but generally in very good condition and entirely legible. 332 x 230 mm (written space 315 x 190 mm)
The final stage in the accurate placement of musical notation was the introduction of 4-line staves, and they came to be used in almost all music books from the thirteenth century onwards. The present fragment is a relatively early example of their use.