Dent on The Dipleidoscope; or, Double-Reflecting Meridian and Altitude Instrument

Catalogue no: 1465
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): E.J.Dent
Total pages: 24 Illustrations: 8 Language(s): English Publication date: 1843
Editor: Publisher: The Author
Dimensions: 215mm x 140mm Condition: Generally good, cover stained with some tears
Related titles: Related library records:

A pamphlet describing the principles, origins, installation and instructions on the use of the Dipleidoscope as invented and patented by J.M.Bloxham and manufactured by E.J.Dent.

Final pages consist of two charts; the first, "Dent's Approximate Table of Longitudes in Time," the second, "Dent's Table for the Equation of Time, 1843," the third, "Mean Time of the Sun's Semi-Diameter Passing the Meridian."

Room location: Library Extension Cabinet: F Shelf: 5
Search terms: Sundials
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