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|Material Type:||Government publication, National government publication|
|All Authors / Contributors:||
C B Comstock; U.S. Lake Survey.
|Notes:||LC copy replaced by microfilm.|
|Description:||xx, 922 pages : XXX plates, maps ; 30 cm.|
|Contents:||pt. I. Historical account of the survey of the northern and northwestern lakes, May 1841 to July 1, 1881.--pt. II. Standards of length, bases, and base-apparatus.--pt. III. Primary triangulation.--pt. IV. Astronomical determinations.--pt. V. Principal results of the geodetic work.--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.|
|Series Title:||Professional papers (United States. Army. Corps of Engineers), no. 24.|
|Responsibility:||by Lieut.-Col. C.B. Comstock, Corps of Engineers ; aided by the assistants on the survey.|