Haskell water level gauge in water level house.

Haskell water level gauge showing workings.

Lake Survey employee Jim Morris annotating water level gauge.

Fisher and Porter Automatic Digitally Recording water level gauge.

Water level gauge with Stevens Recorder.

Interior of water level gauge station house.

Fisher and Porter Automatic Digitally Recording water level gauge.

Lake Survey employee Jim Morris annotating water level gauge.

Lake Survey employee Jim Morris annotating water level gauge.

Lake Survey employee Jim Morris annotating water level gauge.

Haskell water level gauge.

Haskell water level gauge.

Fisher and Porter Automatic Digitally Recording water level gauge.

Map showing Great Lakes Basin precipitation stations.

Menu for tenth anniversary celebration of the directorship of E. Lester Jones.

Cover for menu and program of tenth anniversary celebration of E. Lester Jones serving as Director of the Coast and Geodetic Survey.

Coast and Geodetic Survey flag and Director's flag on April 15, 1925 banquet menu and program celebrating 10th year of E. Lester Jones as Director of the C&GS.

Source document for maps showing various magnetic elements obtained by W.H. Emory on the Mexican Boundary Survey and the Coast Survey on the West Coast. See image cgs00734.

Iso-magnetic lines showing change in declination for Pennsylvania between 1842 and 1862 and other magnetic parameters as compiled by A.D. Bache.

"Abstract of results of a Magnetic Survey of Pennsylvania...." by Alexander Dallas Bache, 1863.

Magnetic dip and variation compiled by W. H. Emory of the Mexican Boundary Survey and Alexander Dallas Bache of the U.S. Coast Survey.

Observing at triangulation station on Hughes High School.

Double-tower triangulation signal at station Observatory of the Cincinnati Survey.

Engraving of the White House by Albert Boschke of the Coast Survey.

Engraving of George Washington's National Monument by Albert Boschke of the Coast Survey. This apparently was the envisioned version of the Washington Monument as the monument was not dedicated until 1885 and the base area has never looked like the view produced by Boschke.

Engraving of the U.S. Capitol Building by Albert Boschke of the Coast Survey.

Engraving of the U.S. Post Office Building by Albert Boschke of the Coast Survey. Apparently dogs were a regular part of the Washington landscape in the 1850's.

Engraving of the Military Asylum by Albert Boschke of the Coast Survey. The asylum was a retirement home for old and disabled soldiers and sailors.

Engraving of the Columbia Armory by Albert Boschke of the Coast Survey.

Engraving of the U.S. Treasury Building by Albert Boschke of the Coast Survey.

Engraving of the City Hall Building by Albert Boschke of the Coast Survey.

Engraving of the Smithsonian Institute by Albert Boschke of the Coast Survey.

Engraving of the Lunatic Asylum by Albert Boschke of the Coast Survey. This is now known as St. Elizabeths Hospital.

Engraving of the U.S. Navy Yard by Albert Boschke of the Coast Survey.

Engraving of the National Observatory by Albert Boschke of the Coast Survey.

Engraving of the U.S. Arsenal by Albert Boschke of the Coast Survey.

Banquet menu and program commemorating 100 years of the Coast and Geodetic Survey. This commemorated the beginning of field work of the Survey of the Coast in 1816.

Table arrangement and guest list of 100th Anniversary of the Coast and Geodetic Survey banquet.

Table arrangement and guest list of 100th Anniversary of the Coast and Geodetic Survey banquet.

Invitation to the 100th Anniversary of the Coast and Geodetic Survey banquet.

Banquet menu and program commemorating 100 years of the Coast and Geodetic Survey. This commemorated the beginning of field work of the Survey of the Coast in 1816.

Gold seal of the Coast and Geodetic Survey from banquet menu.

Gold seal of the Coast and Geodetic Survey from banquet menu.

Image of the Coast and Geodetic Survey Ship BLAKE in the interior of the menu of the 100th Anniversary Banquet of the Coast and Geodetic Survey. The BLAKE was among the most famous oceanographic ships of the Nineteenth Century.

Menu selections of the 100th Anniversary Coast and Geodetic Survey banquet.

Music program of the 100th Anniversary Coast and Geodetic Survey banquet.

End cover of the menu of the 100th Anniversary Coast and Geodetic Survey banquet showing Coast and Geodetic Survey flag.

Card to obtain seating at the 100th Anniversary Coast and Geodetic Survey banquet.

Place card at the 100th Anniversary Coast and Geodetic Survey banquet.

A copy of the original act forming the Survey of the Coast in 1807.