Mackenzie's Ex-meridian altitude tables applicable by slide rule or by simplified logs, consisting of ready gauge points corresponding to every half degree of frequented latitudes and declinations.
Slide rule applications safeguarded with an emergency log.
By Alexander Mackenzie ...
|Main Author:||Mackenzie, Alexander, Captain.|
New York, Colonial publishing co., 1920.
Edition of 1914 published under title: Mackenzie's Ex-meridian tables, by slide rule or by simplified logs.
xxxi, 52 p.
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