An explanation of the magnetic atlas, or variation chart, hereunto annexed; projected on a plan entirely new, by which the magnetic variation on any part of the globe may be precisely determined for any time past, present, or future: and the variation and latitude being accurately known, the longitude is of consequence truly determined
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Main Author: | |
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Format: | Book |
Language: | English |
Published: |
Philadelphia :
Printed by James & Johnson,
1790.
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Library Company
Call Number: |
LCP Old HSP Wxc* 1 |
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Copy 1 | Available |
Copy 1 | Available |