Front matter
Reading edition
Humbly Submitted to the
Approbation of the Right Honourable the Lords Spiritual and Temporal, and the Rest of the Honourable Persons, appointed by the late Act of Parliament, for Hearing and Determining Proposals relating to the said Longitude.
By William Hobbs, Philo Mathem.
LONDON:
Printed for the Author, and are to be Sold by Fard. Burleigh in Amen-Corner.
Price Six-pence.
Note, The former Impression was Printed July 12. 1714.
A New Discovery for Finding the Longitude.
For Finding the Longitude, it is to be noted, That if the true Hour, and Minute of the Day, at the Place of our first Departure, and where we are Arrived, can be both obtained, the Difference of Longitude may be found, as truly as the Difference of Latitude.
For which purpose the Spring-Movement hereunto subjoined, is most humbly proposed to effect the same, even to the Tenth of a Minute of Time. So that should the Error of a Minute happen to be found in Practice, it must proceed from the Influence or Vicissitude of the Air, and not from any Defect in the Rules by which the said Movement is composed, as will plainly appear by the Explication thereof, in the following Lines; and first of