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Leipzig: Schwickertschen Verlage and E. B. Schwickert, 1803-1836. A rare complete set of this early 19th century German dictionary of pure mathematics, published in five volumes (in six books) and a two-volume supplement (Supplemente zu G. S. Kluegel's Woorterbuche der reinen Mathematik). Volumes 4 and 5 were co-written by Carl Brandan Mollweide and Johann August Grunert; Grunert authored the supplements.

Volume 1: A-D (1803): viii, 944 pages, 8 folding plates; 2: E-J (1805), 956, [6] pages, 6 folding plates; 3: K-P (1808), 933, [3] pages, 10 folding plates; 4: Q-S (1823), vi, 889, [1] pages, 7 folding plates; 5.1, T-U (1831), iv, 589 pages, 8 folding plates; 5.2, V-Z (1831), 590-1188, [1] pages; Supplement 1: A-D (1833), vi, 737, [1] pages, 2 folding plates; Supp. 2: E-Z (1836), 1032 pages, 4 folding plates.

Kluegel (1739-1812) held a variety of academic positions before taking the chair of mathematics at the University of Halle, a position he held for 20 years before retiring. As a theoretician, his primary work was on parallels and in trigonometry, but in the 19th century he was known for this dictionary. He completed three volumes before his death and the work was carried on by Mollweide (volume 4) and Grunert (vol. 5 and the supplements).

According to the St. Andrews University MacTutor History of Mathematics archive, "It was [Kleugel's] mathematical dictionary, however, which led to his fame. This was the three volume work Mathematisches Wörterbuch... which appeared between 1803 and 1808. The work includes articles such as "Abacus", "Algebra", "Analysis", "Geometry", "Logarithms", "Parallels" and a host of similar ones. His definitions often illustrate the state of mathematics at this time and are now of interest to historians of mathematics... The dictionary was widely used for several generations making Klügel's name widely known."

Mollweide was also an important German mathematician, best remembered for the Mollweide projection of the sphere, used in many atlases. Mollweide's best-known student was August Moebius.

Kluegel's dictionary of mathematics is quite scarce, complete as here in 8 volumes, with only a few institutional holdings, mostly in Germany. ISBN: 281AIB1040944.