Signal building
By: by Jasper S. Bilby ...
Series: U.S. Coast and geodetic survey. Special publication; no. 234; Special publication (U.S. Coast and Geodetic Survey) ;; no. 234.
Publisher: U.S. Govt. print. off.
Published: 1943
Place of publication: Washington
Language: eng
Number of pages: 43
Subjects: Triangulation signal towers.
Notes: At head of title: U.S. Dept of commerce. Jesse H. Jones, secretary. Coast and geodetic survey. Leo Otis Colbert, director ...
"The greater part of the material contained in this publication has been taken directly from Special publication no. 93, 'Reconnaissance and signal building,' without change. A revised manual for reconnaissance, entitled 'Manual of reconnaissance for triangulation,' has recently been issued by the Coast and geodetic survey as Special publication no. 225 and supersedes part I of Special publication no. 93. Part II of the older manual is covered by the present publication."--Introd.