by Massachusetts Geodetic Survey.
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High water data, flood of March 1936 in ...
Lambert conformal conic projection in Ma...
Plane coordinates of minute intersection...
Report on determination of elevations at...
Status of land surveying in eastern Mass...
Storm-tide hurricane of September 1938 i...
The 1978 Houston-Galveston and Texas Gul...
Spirit leveling in Texas
Spirit leveling in Illinois, 1896-1941
Tidal bench marks