Online Books by
William D. Ennis
(Ennis, William D. (William Duane), 1877-)
Books from the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Ennis, William D. (William Duane), 1877-: Applied thermodynamics for engineers (D. Van Nostrand Company, 1911) (page images at HathiTrust)- Ennis, William D. (William Duane), 1877-: Applied thermodynamics for engineers (D. Van Nostrand company, 1910) (page images at HathiTrust)
- Ennis, William D. (William Duane), 1877-: Applied thermodynamics for engineers (Van Nostrand, 1915) (page images at HathiTrust)
- Ennis, William D. (William Duane), 1877-: Flying machines today (D. Van Nostrand Company, 1911) (page images at HathiTrust)
- Ennis, William D. (William Duane), 1877-: Flying Machines Today (Gutenberg ebook)
- Ennis, William D. (William Duane), 1877-: Linseed oil and other seed oils. (D. Van Nostrand company, 1909) (page images at HathiTrust)
- Ennis, William D. (William Duane), 1877-: Thermodynamics, abridged : based on "Applied thermodynamics for engineers" by the same author (D. Van Nostrand Co., 1922) (page images at HathiTrust)
- Ennis, William D. (William Duane), 1877-: Vapors for heat engines, including considerations relating to the use of fluids other than steam for power generation : a study of desirable vacuum limits in simple condensing engines: methods for computing efficiencies of vapor cycles with limited expansion and superheat; a volume-temperature equation for dry steam, and new temperature-entropy diagrams for various engineering vapors (D. Van Nostrand company, 1912) (page images at HathiTrust)
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