Horological Disquisitions

Smith (John)

Published by Alan Sutton Publishing, Reading, 1962

About this Item

vi + 92 pages, 1 folding table, the 1962 facsimile reprint of a book first published in 1694. The full title is Horological Disquisitions Concerning the Nature of Time, and the Reasons why all Days, from Noon to Noon, are not alike Twenty Four Hours long. This is John Smith?s second book, it explains the difference between solar time and a 24 hour (mean time) day. The first table shows the difference between a solar day and a 24 hour day for every day of the year, the second table is an equation table arranged so that by setting a clock on ten specified days in the year it will always be within 3¾ minutes of solar time. The original edition of this book is almost unobtainable, this facsimile edition is now hard to find. A very good copy. Seller Inventory # K3572

Bibliographic Details

Title: Horological Disquisitions

Publisher: Alan Sutton Publishing, Reading

Publication Date: 1962

Binding: Hardcover

Condition: Very Good

Dust Jacket Condition: No Jacket