A Guide to the Navigational Exercise Book, [1742] Navigational Exercise Book MS 92.5

A Guide to the Navigational Exercise Book, [1742]

A Collection in
the Colonial Williamsburg Foundation's
John D. Rockefeller, Jr. Library
Manuscript Number MS 92.5


John D. Rockefeller, Jr. Library, Colonial Williamsburg Foundation

John D. Rockefeller, Jr. Library
Colonial Williamsburg Foundation
P.O. Box 1776
Williamsburg, Virginia 23187
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© 2002 By the Colonial Williamsburg Foundation. All rights reserved.

Funding: Web version of the finding aid funded in part by a grant from the National Endowment for the Humanities.

Processed by: Special Collections staff

John D. Rockefeller, Jr. Library, Colonial Williamsburg Foundation
Manuscript number
MS 92.5
Navigational Exercise Book, [1742]
1 item (36 p.)

Administrative Information


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Publication Rights/ Restrictions on Use

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Preferred Citation

Navigational Exercise Book, Manuscript MS 92.5, John D. Rockefeller, Jr. Library, Colonial Williamsburg Foundation

Scope and Content Information

Navigational exercise book consists of handwritten exercises to determine longitude and latitude between various ports with most originating in Cape Cod, Massachusetts. Exercises consist of examples with originating longitude and latitude, place of departure, destination, and conditions which might influence arrival. Answers consist of a plat diagramming the course, changes in longitude and latitude, distances sailed and other concerns. Also included are directional tables, or charts, and small, but detailed drawings of ships and ports on nearly every page. The types of exercises are divided into problems concerning plain sailing, traverse sailing, and mercator's sailing. The routes the exercises present consist mostly of trips between Cape Cod and the West Indies.

There are illustrations depicting twenty ships some of which are dated 1742. The ships are: Asp, Charming Molley, Dragon, Elizabeth, Endeavour, Fox, High Flyer, Katharine, Neptune, Prosperity, Ranger, Sea Flower, Sea Horse, Seven Brothers, Squirrel, Swallow, Three Batchelors, Urchin, Welcome and Wimble.

Index Terms


  • Navigation.
  • Corporate Names:

  • Asp (Ship)
  • Charming Molley (Ship)
  • Dragon (Ship)
  • Elizabeth (Ship)
  • Endeavour (Ship)
  • Fox (Ship)
  • High Flyer (Ship)
  • Katharine (Ship)
  • Neptune (Ship)
  • Prosperity (Ship)
  • Ranger (Ship)
  • Sea Flower (Ship)
  • Sea Horse (Ship)
  • Seven Brothers (Ship)
  • Squirrel (Ship)
  • Swallow (Ship)
  • Three Batchelors (Ship)
  • Urchin (Ship)
  • Welcome (Ship)
  • Wimble (Ship)
  • Geographical Names:

  • Atlantic Ocean-- Navigation.