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 celestial bodies.
Subtitle: Latitude 60 ̊N. to 60 ̊S.--Declination 27 ̊N. to 27 ̊S.
By: Pub. by the Hydrographic office under the authority of the secretary of the navy.
Contributors: Littlehales, G. W. 1860-1943.
Series: [Publication] -- no. 203.; H.O. pub -- no. 203.
Publisher: Govt. print. off.
Published: 1923
Place of publication: Washington
Language: eng
Number of pages: 869
Subjects: Navigation
Notes: "The plan of arrangement and scope of these tables, as well as the method of using them in navigation, were conceived by Mr. G. W. Littlehales, C.E., hydrographic engineer, Hydrographic office, Washington, D.C."--Pref., p. iii.