Report upon the primary triangulation of the United States Lake survey.
By: By Lieut.-Col. C.B. Comstock, Corps of engineers ... aided by the assistants on the survey.
Contributors: Comstock, C. B. 1831-1910.
Series: Professional papers of the Corps of engineers, U.S. Army.; no. 24; Professional papers (United States. Army. Corps of Engineers) ;; no. 24.
Publisher: Gov't print. off.
Published: 1882
Place of publication: Washington
Language: eng
Number of pages: 922
Subjects: Standards of length; Base measuring; Geomagnetism -- Great Lakes (North America); Great Lakes (North America) -- Surveys
Notes: Microfilm. Washington, D.C., Library of Congress.
Table of contents: title: pt. I. Historical account of the survey of the northern and northwestern lakes, May 1841 to July 1, 1881.; title: pt. II. Standards of length, bases, and base-apparatus.; title: pt. III. Primary triangulation.; title: pt. IV. Astronomical determinations.; title: pt. V. Principal results of the geodetic work.; title: Appendices: I. Additional data relative to metre R 1876. II. Slow return of zinc bar Z to its original length, after being heated. III. Difference of longitude between Detroit, Mich., and Cambridge, Mass. IV. Magnetic work of the Lake survey.