LOC's Public Domain Archive
The objects in this archive are from Library of Congress - the nation’s first established cultural institution and the largest library in the world, with millions of items including books, recordings, photographs, maps and manuscripts in its collections. The Library provides Congress, the federal government and the American people with a rich, diverse and enduring source of knowledge to inform, inspire and engage them and support their intellectual and creative endeavors.
Disclaimer: A work of the Library of Congress is "a work prepared by an officer or employee" of the federal government "as part of that person's official duties." In general, under section 105 of the Copyright Act, such works are not entitled to domestic copyright protection under U.S. law and are therefore in the public domain. This website is developed as a part of the world's largest public domain archive, PICRYL.com, and not developed or endorsed by the Library of Congress, https://www.picryl.com
![[Ore testing and ovens in assay laboratory with surrounding text]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE1OTgvMDEvMDEvb3JlLXRlc3RpbmctYW5kLW92ZW5zLWluLWFzc2F5LWxhYm9yYXRvcnktd2l0aC1zdXJyb3VuZGluZy10ZXh0LTY0MC5qcGc%3D/320/432/jpg "[Ore testing and ovens in assay laboratory with surrounding text]")
![[Roger bacon conducting an experiment], engraving, Library of Congress](https://cache.getarchive.net/Prod/thumb/cdn18/L3Bob3RvLzIwMTkvMTAvMDkvcm9nZXItYmFjb24tY29uZHVjdGluZy1hbi1leHBlcmltZW50LTc5MmZjYi02NDAuanBn/40/49/webp "[Roger bacon conducting an experiment], engraving, Library of Congress")
![[Man usning scientific apparatus in laboratory]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDkvMDEvMDEvbWFuLXVzbmluZy1zY2llbnRpZmljLWFwcGFyYXR1cy1pbi1sYWJvcmF0b3J5LTY0MC5qcGc%3D/40/25/webp "[Man usning scientific apparatus in laboratory]")
![[Man using microscope in laboratory]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MzYvMDEvMDEvbWFuLXVzaW5nLW1pY3Jvc2NvcGUtaW4tbGFib3JhdG9yeS02NDAuanBn/40/31/webp "[Man using microscope in laboratory]")
![[Alchemist and assistant in laboratory, with surrounding border of birds, flowers, and insects]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE2NTIvMDEvMDEvYWxjaGVtaXN0LWFuZC1hc3Npc3RhbnQtaW4tbGFib3JhdG9yeS13aXRoLXN1cnJvdW5kaW5nLWJvcmRlci1vZi1iaXJkcy1mbG93ZXJzLTY0MC5qcGc%3D/40/55/webp "[Alchemist and assistant in laboratory, with surrounding border of birds, flowers, and insects]")
![[Garland Stove Works and big stove]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MTUvMDEvMDEvZ2FybGFuZC1zdG92ZS13b3Jrcy1hbmQtYmlnLXN0b3ZlLTY0MC5qcGc%3D/40/29/webp "[Garland Stove Works and big stove]")
![[Aged man posed near a stove]. 19th century, Library of Congress collection](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDAvMDEvMDEvYWdlZC1tYW4tcG9zZWQtbmVhci1hLXN0b3ZlLTY0MC5qcGc%3D/40/48/webp "[Aged man posed near a stove]. 19th century, Library of Congress collection")
