Have you ever wanted to be able to find the longitude of wherever you were, or to know what time of day it was without using a watch? George Adams’ An Essay on the Use of Terrestrial Globes,
written in 1766, answers these questions and many more.
Utilizing simple scientific truths, Adams describes how to navigate a ship or plan for the winter and summer solstices. His studies exemplify the general principles of navigation, and are exhibited in this book in a greater number of problems than are found in any prior work.