Description
Extremely rare 1883 original pamphlet by Dr. Gustav Holzmüller titled “Weitere Beiträge zur Theorie der isogonalen Verwandtschaften” (“Further Contributions to the Theory of Isogonal Conjugations”). This 16-page work explores advanced geometric concepts, particularly within triangle geometry-a subject of great interest to 19th-century mathematicians.
This first edition is stamped by the Franklin Institute Library – Electrical Exhibition, making it a fascinating crossover between the histories of mathematics and American scientific institutions. Handwritten notes on the interior include classification markings: “Class: 516” (Geometry), accession number “4518,” and the year “1883,” confirming its early cataloging.
Highlights:
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Authored by noted German mathematician Dr. Gustav Holzmüller
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First edition from 1883 with original pagination to page 16
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Rare Franklin Institute Library stamp, linking it to historical exhibitions
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Scarce contribution to the study of isogonal conjugates in triangle geometry
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Excellent provenance for collectors of mathematics, science, or rare ephemera
A repair has been made to the spine, preserving the integrity of the original structure. All pages are intact and legible. The pamphlet remains a strong candidate for academic collections or collectors of early mathematical works.
Pamphlets of this nature, particularly with institutional provenance and focused on specialized geometry, are seldom available on the market. A unique opportunity to own a piece of mathematical history.
Please inquire for condition details or additional images.
