| Title: | Report of Professor John Locke, of Cincinnati, Ohio, on the invention and construction of his electro-chronograph : for the National Observatory ... |
| Author: | Locke, John, 1792-1856 |
| Note: | Printed by Wright, Ferris, and Co., 1850 |
| Link: | page images at HathiTrust |
| No stable link: | This is an uncurated book entry from our extended bookshelves, readable online now but without a stable link here. You should not bookmark this page, but you can request that we add this book to our curated collection, which has stable links. |
| Subject: | Chronograph |
| Subject: | United States Naval Observatory |
| Other copies: | Look for editions of this book at your library, or elsewhere. |
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