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Catalogue of the mean declinations of 981 stars, between twelve hours and twenty-six hours of right ascension and thirty degrees and sixty degrees of north declination for January 1, 1875
Safford Truman Henry, Comstock Cyrus Ballou | Government printing office | 1873
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Report upon the primary triangulation of the United States Lake Survey
Comstock C. B. | Government Printing Office | 1882
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Professional papers of the Corps of Engineers, U. S. Army, n° 24. Report upon the primary triangulation of the United States Lake Survey
Comstock C. B | Government printing office | 1882