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"The purpose of the Delaware Astronomical Society shall be to encourage interest and to advance education and scientific knowledge in the subject of astronomy.” The DAS Library’s Online Public Access Catalog, called BARLOW, is available below and also via the LibraryThing App.
A Barlow is a magnification aid named in honor of its English designer, Peter Barlow F.R.S. 1776-1862). Peter Barlow and George Dolland F.R.S. (1774-1852) were optical instrument innovators.
Peter Barlow F.R.S.
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