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<p>WASHINGTON OBSERVATIONS FOR 1871.-APPENDIX IV.<br><br>The site was the home of the Bureau of Medicine and Surgery for most of the 20th century.<br><br></p><p>Scanned from a photocopy.
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<br>Subjects: astronomy; Potomac Annex; U.S. Navy; BUMED; longitude; Transit of Venus;</div>
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J. E. Nourse</div>
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