Folding handcolored engraved frontispiece, two engraved plates (one folding & heightened in red), one folding plate of printed music, & music printing in the text. xii, 52 pp., one leaf of errata. 8vo, cont. marbled semi-stiff boards (spine a little defective), uncut. Erfurt: Beyer & Maring, 1800.

First edition of this attractive and fascinating book which relates harmony to colors; it is very much a product of early German Romanticism. Dalberg (1760-1812), was an author, composer, and aesthetician. He was “born into a noble family…though physically deformed, he was a virtuoso pianist…He studied composition with Ignaz Holzbauer and travelled extensively in Italy and England. His... More

One folding engraved plate (some foxing) & seven printed tables (five in the text & two on a separate folding sheet). 2 p.l., 40 pp. Large 4to, orig. green patterned boards (some foxing). [Halle]: G. Haack, [1827].

First edition, and a very evocative association copy, of the rare Habilitationschrift by Wilhelm Weber (1804-91) on acoustics, specifically on the acoustic coupling of tongue and air cavity in reed organ pipes; his work in this area led, in a slightly roundabout way, to his close and enormously fruitful association with Gauss, which began in September of 1831. This copy belonged to Gauss — with the “Gauss-Bibliothek”... More