E.J.Dent

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

Catalogue no: 1466
Dewey No: Subject(s): Courtenay Ilbert Archive
Author(s): E.J.Dent
Total pages: 24 Illustrations: 8 Language(s): English Publication date: 1853
Editor: Publisher: The Author
Dimensions: 215mm x 140mm Condition: Generally good, cover a bit fragile
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Notes:

Later edition and virtually identical to Cat. No. 1465.

A few additional paragraphs added to the 1843 version plus an extended table of "Mean Time of the Sun's Semidiameter Passing the Meridian".

Includes Equation of Time Table for 1854.

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

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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