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The Graduation of Compass Cards

Published online by Cambridge University Press:  18 January 2010

W. E. May
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Extract

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I recently received from a correspondent on the other side of the Atlantic a request for information concerning the graduation of compass cards. I compiled the following notes which may be of some interest to readers of the Journal. I must, however, point out that to a great extent they are based on examination of compasses and cards in museums and on my own experience. It may well be that readers, especially those from other countries, may be able to supplement or correct my statements. Any such information would be most welcome.

Type
Forum
Information
The Journal of Navigation , Volume 20 , Issue 1 , January 1967 , pp. 102 - 103
Copyright
Copyright © The Royal Institute of Navigation 1967

References

1 This Journal, 6, 248.Google Scholar