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united states

united states: explore 1241 source-linked works published from 1635 to 2025, with original documents and citations.

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Includes records with this source-supplied label or an explicit phrase match in their metadata. Matches indicate a mention, not proof that a paper uses a method or tests a material. Source versions are consolidated by DOI.

Sources: loc. Collection updated 2026-09-15. Counts describe this index, not the complete source archives.

Library of Congress1994

Allegheny Portage Railroad National Historic Site, Pennsylvania

Bird's-eye view drawn to resemble a block diagram. "*GPO: 1994--301-085/80169. Reprint 1994." Relief shown by shading. Panel title. Title at top: Crossing a mountain. Includes text, index of inclines, and ill. (some col.). Text, small map of site, and col. ill. on verso. Available also through the Library of Congress Web site as a raster image.

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WorkPublishedSource identifierSource
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip000243loc
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip000244loc
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip000247loc
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip000248loc
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip002332loc
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip002333loc
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip002334loc
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip002335loc
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip002336loc
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip002337loc
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip002338loc
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip002339loc
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip002340loc
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip002341loc
Water flowing through raceway system in Paterson's historic district; the raceway supplied hydraulic power for mills.1994-09-11afcwip002342loc
Allegheny Portage Railroad National Historic Site, Pennsylvania199494684420loc
Lowell Historic Commission Office, Lowell, Massachusetts1987-09-18afc1987042_jb_239loc
Boys standing beside Lowell Historic Preservation Commission, Lowell, Massachusetts1987-09-11afc1987042_jb_c004loc

These are bibliographic comparisons, not experimental rankings. Follow the original document for methods and conditions.