Search Results

1090pages, 65,359 results in yourCategorysearch for"Science & Nature"Advanced Search
Current Lightbox
Hydraulic Excavation, Miraflores - Monitors in Oberation [sic], December 21, 1910. Creator: Harris & Ewing.
 
Hygiene Laboratory, 1913. Creator: Harris & Ewing.
 
Hygiene Laboratory, 1913. Creator: Harris & Ewing.
 
Iceberg, 1914. Creator: Harris & Ewing.
 
Gladys Ingalls, Mrs. Arnold Robertson, Dog Show, 1916. Creator: Harris & Ewing.
 
Gladys Ingalls, Mrs. Arnold Robertson, Dog Show, 1916. Creator: Harris & Ewing.
 
Dr. Howard A. Kelly, Radium Expert of Baltimore, 1914. Creator: Harris & Ewing.
 
Countess De Lagreze [sic], 1918. Creator: Harris & Ewing.
 
Countess De Lagreze [sic], 1918. Creator: Harris & Ewing.
 
Lake Ellen Wilson, 1913. Creator: Harris & Ewing.
 
Langley Field, Va. - Curtis Jn4D Plane, with Olmstead Propeller And Ackerman Wheels, 1917. Creator: Harris & Ewing.
 
Samuel Pierpont Langley, Secretary, Smithsonian Institute, 1913. Creator: Harris & Ewing.
 
Samuel Pierpont Langley, Secretary, Smithsonian Institute, 1913. Creator: Harris & Ewing.
 
Experimental Tandem Biplane On Potomac Embodying Langley Principles, 1917. Creator: Harris & Ewing.
 
Experimental Tandem Biplane On Potomac Embodying Langley Principles, 1917. Creator: Harris & Ewing.
 
Experimental Tandem Biplane On Potomac Embodying Langley Principles, 1917. Creator: Harris & Ewing.
 
Life Saving Suit Worn By T. Aud, 1916. Creator: Harris & Ewing.
 
J.D. Long, Medical Director, Public Health Service, 1923. Creator: Harris & Ewing.
 
Machine Gun Board of War Department - Tracy Dixon, Brig. Gen. Todd, Newton D. Baker..., 1917. Creator: Harris & Ewing.
 
Leonard D. Mahon with steel helmet he invented that could be used as shovel, 1917. Creator: Harris & Ewing.
 
Leonard D.Mahon with Steel Helmet He Invented That Could Be Used As Shovel, 1917. Creator: Harris & Ewing.
 
Mrs. Van H. Manning, U.S. Bureau of Mines, Left, Mine Rescue Methods, 1917. Creator: Harris & Ewing.
 
Marine Corps Rifle Range, Lewis Machine Gun Tests, 1917. Creator: Harris & Ewing.
 
Marine Corps Rifle Range, Winthrop, Md. - Gen. Barnett Testing Colt's Automatic Machine Gun, 1917. Creator: Harris & Ewing.
 
Marine Corps Rifle Range, Winthrop, Md. - Gen. Barnett Testing Colt's Automatic Machine Gun, 1917. Creator: Harris & Ewing.
 
Marine Corps Rifle Range, Winthrop, Md. - Gen. Barnett Testing Colt's Automatic Machine Gun, 1917. Creator: Harris & Ewing.
 
Thomas Riley Marshall, Vice President of The United States, 1914. Creator: Harris & Ewing.
 
Dr. Franklin H. Martin of Chicago, Regent And Secretary General, American College of Surgeons, 1913. Creator: Harris & Ewing.
 
Charles Frederick Marvin, Chief, Weather Bureau, 1913. Creator: Harris & Ewing.
 
Charles Frederick Marvin, Chief, Weather Bureau, 1913. Creator: Harris & Ewing.
 
Charles Frederick Marvin, Chief, Weather Bureau, 1913. Creator: Harris & Ewing.
 
Charles Frederick Marvin, Chief, Weather Bureau, 1913. Creator: Harris & Ewing.
 
Charles Frederick Marvin, Chief, Weather Bureau, 1913. Creator: Harris & Ewing.
 
Charles Frederick Marvin, Chief, Weather Bureau, at Desk, 1916. Creator: Harris & Ewing.
 
Mergenthaler, Ottmar, 2nd Linotype Machine with Band, Invented By Him; 3rd Design He..., 1917. Creator: Harris & Ewing.
 
Bureau Of Mines, Mine Rescue Methods, 1917. Creator: Harris & Ewing.
 
Minidoka Project - U.S. Reclamation Bureau. Minidoka Desert in 1905, Before Irrigation, 1912. Creator: Harris & Ewing.
 
Mountaineers - Mountain Women, 1913. Creator: Harris & Ewing.
 
Mountaineers - Mountain Women, 1913. Creator: Harris & Ewing.
 
Curtiss Biplane 2 Engines, with Floats..., 1917. Creator: Harris & Ewing.
 
Curtiss Biplane 2 Engines, with Floats..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Biplane 2 Engines, with Floats, Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Aero Coast Patrol Commn. - Curtiss Hydroaeroplane or Flying Boat Exhibited..., 1917. Creator: Harris & Ewing.
 
National Geographical [sic] Society - Anniversary of Bell Telephone, 1916. Creator: Harris & Ewing.
 
National Guard of D.C. - Field Tactics, 1915. Creator: Harris & Ewing.
 
Owen, F.D. Public Buildings And Grounds Custodian of The Flags, Left, Planting Tree, Presid..., 1913 Creator: Harris & Ewing.
 
Panama Canal, 1913. Creator: Harris & Ewing.
 
Panama Canal, 1913. Creator: Harris & Ewing.
 
Panama Canal, 1913. Creator: Harris & Ewing.
 
Panama Canal, 1913. Creator: Harris & Ewing.
 
Panama Canal, 1904. Creator: Harris & Ewing.
 
Photographer with Large Format Camera, 1914. Creator: Harris & Ewing.