The Sumner line of position : furnished ready to lay down upon the chart by means of tables of simltaneous hour angle and azimuth of the navigator's stars, between 27 ̊and 63 ̊of declination, latitude 60 ̊N. to 60 ̊S
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| Other Authors: | |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
Hydrographic Office under the authority of the Secretary of the Navy : U.S. G.P.O.,
1925
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| Series: | H.O. pub. ;
no. 204 |
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