Books by Lehigh University. Sayre Observatory:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Lehigh University. Sayre Observatory: Astronomical papers. ([The University], 1907), also by John Hutcheson Ogburn (page images at HathiTrust)- Lehigh University. Sayre Observatory: Results of observations with the zenith telescope of the Sayre Observatory, from April 1, 1876, to December 27, 1893. (Philadelphia, 1902), also by C. L. Doolittle (page images at HathiTrust)
- Lehigh University. Sayre Observatory: Results of observations with the zenith telescope of the Sayre Observatory, from January 19, 1894, to August, 19, 1895. (Philadelphia, 1901), also by C. L. Doolittle (page images at HathiTrust)
Find more by Lehigh University. Sayre Observatory at your library, or elsewhere.