Views of Trinidad Head and Cape Mendocino. Oddly, the Cape Mendocino view is the same as on Sheet No. 1, looking from the south to north.

Reconnaissance of the Western Coast from Monterey to the Columbia River. Sheet No. 3 of 3. This chart extends from the Umquah (Umpqua) River to the Columbia River Entrance.

Hand sketch "Exhibiting the normal course and velocity of the tidal current at ebb for the 2nd Quarter (of the moon) in Charleston Harbor" by Lieut. J. N. Maffitt. Original mockup version.

Reconnaissance of the Western Coast from San Francisco to San Diego.

5 views from the chart of "Reconnaissance of the Western Coast from San Francisco to San Diego." View of the Town and Mission of Santa Barbara; View of San Pedro; View showing Initial Point of Boundary between the U.S. and Mexico; View of Catalina Harbor; and View of Pt. Loma

3 views from the chart of "Reconnaissance of the Western Coast from San Francisco to San Diego." View of Pt. Conception bearing W. by S. 3 miles; View of Pt. Conception bearing S.E. by E. 12 miles; and View of Pt. Duma bearing East 10 miles.

4 views from the chart of "Reconnaissance of the Western Coast from San Francisco to San Diego." View of Piedras Blancas; View of Moro Rock, Esteros Bay; View of Pt. Sal; and View of Pt. Arguilla.

3 views from the chart of "Reconnaissance of the Western Coast from San Francisco to San Diego." View of Pt. Ano Nuevo; View of Pt. Pinos; and View of Pt. Sur bearing N.N.W. 1/4W. 4 miles.

2 views from the chart of "Reconnaissance of the Western Coast from San Francisco to San Diego." View of the Entrance to San Francisco Bay showing Alcatraz and View of Pt. Piedras bearing N.N.W. 3 miles.

Reconnaissance of the Harbors of Santa Cruz, San Simeon, Coxo and San Luis . Obispo. Sheet J.

General Chart of the Coast from Gay Head to Cape Henlopen (from a triogonometrical survey). For an unfinished study of Ice Formation along Atlantic Coast. Note also tightening of contours at continental shelf break. This was the first nautical chart to show the rapid change in slope from the continental shelf to the continental slope at the "break."

5 Views from the "Chart of the Coast from Gay Head to Cape Henlopen." No.1 view off the Entrance to Block Island Sound b/w Montauk Pt. & Block Island; No.3 view off Navesink Highlands with Navesink Lights and Sandy Hook Fixed Light; No.4 view off Barnegat Inlet with Barnegat Fixed Light; No.5 & No.6 view of approach to Delaware Bay showing Cape May Lt.H. and Cape Henlopen Lt. H. and end of Cape.

2/3 right side of "General Chart of the Coast from Gay Head to Cape Henlopen", showing the color scales of the ice formation. Blue - Local Formation, Pink - Drifting Ice and Bluish Pink - Local Drift Formation.

Reconnaissance of the Passes of the The Delta of the Mississippi .

Reconnaissance of the Harbors of Santa Cruz, San Simeon, Coxo, and San Luis Obispo.

Reconnaissance map of the Coast of Texas from Corpus Christi to Bolivar Peninsula.

Reconnaissance map of the Coast of Texas and Louisiana from Bolivar Peninsula to Isle Derniere.

Reconnaissance map of the Coast of Louisiana, Alabama, and Florida from Isle Derniere to Pensacola.

Reconnaissance map from Sabine City, Texas, to Mobile Bay, Alabama by F. H. Gerdes.

Topographic sheet of "Site of the City of San Francisco and Its Vicinity" probably by Augustus Rodgers.

Sketch diagrams of the results of the "Gulf Stream Explorations", showing Section 5 off Charleston, SC., Section off St. Simon's I. GA., and Section off Cape Canaveral, FL.

Chart of "City of San Francisco and Its Vicinity".

Sketch A Survey of "Minots Ledge off Boston Harbor", showing the site for a Light House. Includes hydrographic profiles of Outer Minots and Inner Minots.

Drawing of the "Self-Registering Tide Gauge", devised by Joseph Saxton for the use of the US Coast Survey, illustrating the horizontal plan, rear elevation and side elevation of the tide gauge.

Reconnaissance of the Western Coast from Gray's Harbor to the Entrance of Admiralty Inlet, including 4 views

4 views from the "Reconnaissance Map of the Western Coast from Gray's Harbor." A view of Tatoosh I. North by compass at 3 miles; a view of Flattery Rocks N.W. by N. compass at 5 miles; a view of Destruction I. by N.W. compass at 6 miles; and a view showing Sail Rock & Pt. Grenville

Reconnaissance of Duwamish Bay & Seattle Harbor, Washington Territory.

Survey Map Gulf Stream No 1 showing the positions and comparison of observations of temperature in the Gulf Stream in 1845, '6, '7, '8, '53, & '54.

Colored Diagram of "Comparison of depths on the line of deepest water in Maffitts Channel, as suveyed in 1850, 1852 & 1854."

Sketch E, map of "Comparison of Maffitt's Channel, Charleston Harbor."

Title block of the hydrographic survey H-406 of "Two Lines of Deep Sea Soundings to the Southward of Nantucket." Noted number of miles run deep sea soundings, 207.0.

Hydrographic sheet H-406 of "Two Lines of Deep Sea Soundings to the Southward of Nantucket.", expressed in fathoms

Title block of the hydrographic sheet H-406 of "Two Lines of Deep Sea Soundings to the Southward of Nantucket."

Title block of original Chart of the hydrographic survey H-457 of "Stellwagen's Bank, Massachusetts Bay." Discovered in October 1854.

Original hydrographic survey H-457 of "Stellwagen's Bank, Massachusetts Bay." Discovered in October 1854. Note number of miles run while sounding, 380.

Original hydrographic survey H-457 of "Stellwagen's Bank, Massachusetts Bay." Discovered in October 1854.

Mapping of changes in Maffitt's Channel, Sullivan's Island, Charleston Harbor.

Title block of Anacapa Island, topographic sheet T-555, by W. M. Johnson, Sub-Assistant.

Anacapa Island showing incredible detail. Surveyed by W. M. Johnson, Sub- Assistant, U.S. Coast Survey.

Survey of California coast from Santa Clara River to Hueneme by Sub-Assistant W.M. Johnson, U.S. Coast Survey. Topographic Sheet T-576. Note configuration of estuaries and wetlands.

Published chart of the Reconnaissance of the Western Coast of the United States (Northern Sheet) from Umpquah River to the Boundary." Surveyed by Lieut. James Alden, USN, Assistant in the Coast Survey. This work was done off the Coast Survey Steamer ACTIVE.

View of Entrance to Columbia River, Cape Disappointment E. by N. (Compass) dist. 10 miles. Also shows Mt. St. Helens, Pt. Adams, and other prominent points.

Views of Tatoosh Island and Cape Flattery, Flattery Rocks, Destruction Island, Sail Rock, and Pt. Grenville from the 1855 reconnaissance chart. Note lighthouse on Tatoosh Island.

Views of Tillamook Head, Cape Lookout, and Cape Perpetua.

Preliminary chart of Doboy Bar and Inlet, Georgia. Surveyed by Lieut. T. A. Craven USN Assistant in the Coast Survey. Sketch E No. 8 Annual Report of the Coast Survey for 1855.

Reconnaissance of Romerly Marshes, Georgia. Triangulation by Alexander Wadsworth Longfellow, brother of the poet Henry Wadsworth Longfellow. The hydrography was by Lieut. John Maffitt, USN, Assistant Coast Survey.

Mapping of changes in Maffitt's Channel, Sullivan's Island, Charleston Harbor. This sheet compares both changes in bottom configuration and changes in shoreline on Sullivan's Island. The years of comparison are 1850, 1855, and 1856.

Stellwagen's and other dangerous ledges near Cohasset. Boston Bay. Surveyed by the hydrographic party under the command of Commander H. S. Stellwagen. Hydrographic Survey H-582.

Title block to Hydrographic Survey H-582. Stellwagen's and other dangerous ledges near Cohasset. Boston Bay. Surveyed by the hydrographic party under the command of Commander H. S. Stellwagen.

Two views of the entrance to Charleston Harbor including Fort Sumter. From Preliminary Chart of Charleston Harbor and Its Approaches.