Books by Julius August Christoph Zech:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Zech, Julius August Christoph, 1821-1864: Astronomische untersuchungen über die mondfinsternisse des Almagest ... (Wiedmann'sche buchhandling, 1851), also by active 2nd century Ptolemy (page images at HathiTrust)- Zech, Julius August Christoph, 1821-1864: Georg's freiherrn von Vega Logarithmisch-trigonometrisches handbuch. (Weidmann, 1853), also by Georg Vega and J. A. Hülsse (page images at HathiTrust)
- Zech, Julius August Christoph, 1821-1864: Sammlung mathematischer Tafeln. (Weidmann, 1849), also by Georg Vega and J. A. Hülsse (page images at HathiTrust)
- Zech, Julius August Christoph, 1821-1864: Tabulae reductionum observationum astronomicarum annis 1860 usque ad 1880 respondentes. (sumtibus F. Duemmleri, 1858), also by J. Ph. Wolfers (page images at HathiTrust)
- Zech, Julius August Christoph, 1821-1864: Tafeln der Additions- und Subtractions-logarithmen für sieben Stellen (Weidmannsche buchhandlung, 1849) (page images at HathiTrust)
- Zech, Julius August Christoph, 1821-1864: Tafeln der Additions- und Subtractions-logarithmen für sieben Stellen (Weidmannsche buchhandlung, 1863) (page images at HathiTrust)
- Zech, Julius August Christoph, 1821-1864: Tafeln der additions- und subtractions- logarithmen für sieben stellen. (Weidmannsche Buchhandlung, 1910) (page images at HathiTrust)
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