Studio Bibliografico |
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Giuseppe Solmi |
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Via Stradelli Guelfi 2 | ||

I | 40064 Ozzano Emilia |

Tel. : |
051 / 6511029 | ||

FAX : |
051 / 796152 | ||

E-Mail : |
giuseppe.solmi@tin.it | ||

Internet : |
www.giuseppesolmi.it | ||

UST-Id-Nr.: |
IT 02077441208 |

Specialist in Incunabula and Medieval Manusscripts. We also offer an exclusive service for the restauration of important antiquarian books using original old material.

Biblical Lexicon. Latin bifolium on vellum written in `littera textualis` script, to be dated at the end of 13th/ early 14th century, probably of French provenance. Leaf dimensions : mm. ca. 332 x 240 ; writing space measurement : mm. ca. 255 x 180, with dry lining. The text was written in black ink with red-inked headings, divided into three columns each of them in turn divided in two sub-columns, the left one of these latter reporting the biblical reference, while the right one has the textual quotation transcribed. The decoration includes a big full blue- and red-inked uncial letter `I`, stretching itself along five text lines, decorated with red and blue threads and pilcrows as well. 750,00 EUR Text : Lexicon. Letters H(u) - I (a) : left leaf, column 2, line 42 : Iacere. Genesis, 21 (16): Quantum potest arcus iacere ; Leviticus, 15: Si salivam iecit ; Numbers, 35, C. Iecerit quippiam per insidias ; Deuteronomy, 28, D. Sementem multam iacies in terram ; John, 6, D. In primogenito suo iacitat. Aus Kapitel: Theologie | LexikaDer Titel ist bis zum Beginn der Antiquariatsmesse reserviert. |

Ibn al-Hawwam al-Bagdadi. al-fawaid al-baha`iya fi-l qawaid al-hisabiya. Arabic manuscript on paper, Egypt or Syria, dated at middle of the month of Šaban of the year 735 AH (April AD 1335). 62 leaves, complete; leaf dimensions: mm. 175 x 125; text panel: mm. 130 x 75. 15 lines per page on single column in black nashi script. The titles and some words were marked in red ink, and there are copious marginal notes. Illuminated šamsah on the first leaf and illuminated unwan with the title at the beginning of the text. Soft morocco binding with gold tooled decorations. Very good conditions: only a handful of waterstains. 25.000,00 EUR Abdullah b. Muhammad al-Hawwam al-Bagdadi received his education by Nasir ad-Din at-Tusi (597-672 AH/AD 1201-1274). His presence at the city of Isfahan was mentioned around the year 675 AH/AD 1277, as he was teaching there the sons of princes and ministers. He also taught fiqh at the Dar as-dahab in Bagdad, where he lived until his last days in the year 724 AH/AD 1324. This treatise deals with arithmetic, algebra, and geometry. In the first pages of this work we meet definitions and brief explanations of the simplest geometric elements, as are line, point, segment. Then the text goes on illustrating the different figures of the plane geometry, with relating illustrations. Triangles: starting from leaf 28 it is explained how to deal with the edges/sides of the triangles and its angles, in this case taking into account the right triangle. The square and rectangle - leaf 31v- are treated as constructions derivated from the triangle (idem for the rhombus and the parallelogram -leaf 32 ). Also the trapezium -which is given greater explanation- is always dependent on the triangle (s. leaves 33 and 34). From the leaf 35 onwards, the topic of circumference is treated exhaustively; then, on leaf 41, al-Hawwam gives us the rules for the volume of the sphere, as follows: `The sphere is a solid circumscribed by one surface inside which there is a point, and all the outgoing straight lines towards the circumscribed surface are equal. Its area is a cube of the diameter after subtracting its seventh and a half of its seventh, then subtracting the seventh and a half of its seventh from the resultant`. V = [d3 - (1/7 + 1/2.1/7)d3] - (1/7 + 1/2.1/7) [d3 - (1/7 + 1/2.1/7)d3]. In other words: V = (11/14)2.d3. Evidently, this is rule about the volume of the sphere is erroneous. In his commentary on the book of al-Hawwam, Kamal ad-Din al-Farisi reveals the error about this calculation of the sphere volume, explaining also the reason lying behind such error; then, he expresses its correct formula. Aus Kapitel: Handschriften | Naturwissenschaften | Orient | Mathematik | Bücher über 1.000 EuroDer Titel ist bis zum Beginn der Antiquariatsmesse reserviert. |