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8521 Results Found
U. S. Lake Survey, Detail of Intermediate Sweep Float
Wire Sweep
Survey of Northern and Northwestern Lakes,
Design of Intersection Protractor
Survey of Northern and Northwestern Lakes,
Design of Intersection Protractor
Survey of N. and N.W. Lakes,
Standards of Length
Magnetic Observation Tent
General Chart of the Northern and Northwestern Lakes
Lines for a Twenty-Two Foot Motor Launch for the U. S. Lake Survey
Design for a Twenty-Two Foot Launch for the U. S. Lake Survey
U. S. Coast & Geodetic Survey Steamer, Surveyor;
Type Sections
U. S. Coast & Geodetic Survey Steamer, Surveyor;
Lower Deck