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The Allegheny Observatory

✍ Scribed by S. P. Langley

Publisher: John Wiley and Sons
Year: 1871
Tongue: English
Weight: 105 KB
Volume: 77
Category: Article
ISSN: 0004-6337
DOI: 10.1002/asna.18700770407

No coin nor oath required. For personal study only.

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