Improvements in Dioptric Apparatus for Lighthouses
Author(s): |
W. T. Douglass
J. A. Purves |
---|---|
Medium: | journal article |
Language(s): | English |
Published in: | Minutes of the Proceedings of the Institution of Civil Engineers, 1899, n. 1899-3, v. 137 |
Page(s): | 131-144 |
DOI: | 10.1680/imotp.1899.18973 |
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10177562 - Published on:
02/01/2019 - Last updated on:
02/01/2019