1. Ophidium Barbatum 2. Ophidium aculeatum from Ichtylogie, ou Histoire naturelle: génerale et particuliére… https://www.rawpixel.com/image/938678/ophidium-barbatum-and-ophidium-aculeatumFree Image from public domain license1. Silver stripe (Silurus atherinoides) 2. Striped Silure (Silurus vittatus) from Ichtylogie, ou Histoire naturelle:… https://www.rawpixel.com/image/938726/fish-illustrationsFree Image from public domain licenseLettuce rotting in the fields. Canyon County, Idaho. At the end of the season, the price of lettuce went low by Russell Lee https://www.rawpixel.com/image/12152610/image-background-art-patternFree Image from public domain licenseChristiansted, Saint Croix Island, Virgin Islands. Science class at the Chrisitansted high school. Sourced from the Library… https://www.rawpixel.com/image/12281184/photo-image-person-shirt-technologyFree Image from public domain licenseCharlotte Court House, Virginia. Central High School. Social science class. Sourced from the Library of Congress. https://www.rawpixel.com/image/12297092/photo-image-face-people-artFree Image from public domain license[Untitled photo, possibly related to: Charlotte Court House, Virginia. Central High School. Social science class]. Sourced… https://www.rawpixel.com/image/12297413/photo-image-person-public-domain-womanFree Image from public domain licenseSome of the two thousand poulets on the poultry farm of Mr. August Udal, Finnish [Estonian] FSA (Farm Security… https://www.rawpixel.com/image/12277964/photo-image-pattern-animal-public-domainFree Image from public domain license[Untitled photo, possibly related to: Doctor examines fractured arm, FSA (Farm Security Administration) camp clinic… https://www.rawpixel.com/image/12254037/photo-image-face-hand-personFree Image from public domain licenseSwiss cheese. Madison, Wisconsin. Sourced from the Library of Congress. https://www.rawpixel.com/image/12285416/photo-image-background-pattern-public-domainFree Image from public domain license[Untitled photo, possibly related to: Taos County, New Mexico. Father Cassidy, the Catholic priest of the parish of Penasco… https://www.rawpixel.com/image/12290636/photo-image-people-sky-public-domainFree Image from public domain licensePharmacist filling prescription. Graceville, Minnesota. Sourced from the Library of Congress. https://www.rawpixel.com/image/12283907/photo-image-hand-person-shirtFree Image from public domain license[Untitled photo, possibly related to: Christiansted, Saint Croix Island, Virgin Islands. Science class at the Chrisitansted… https://www.rawpixel.com/image/12279867/photo-image-hand-person-public-domainFree Image from public domain licenseFederal butter inspector. Land O'Lakes plant, Minneapolis, Minnesota. Sourced from the Library of Congress. https://www.rawpixel.com/image/12286498/photo-image-plant-person-public-domainFree Image from public domain license[Untitled photo, possibly related to: Poster by Record Section, Suburban Resettlement Administration]. Sourced from the… https://www.rawpixel.com/image/12268202/photo-image-public-domain-posterFree Image from public domain license[Untitled photo, possibly related to: Taos County, New Mexico. Father Cassidy, the Catholic priest of the parish of Penasco… https://www.rawpixel.com/image/12290366/photo-image-face-people-public-domainFree Image from public domain license[Untitled photo, possibly related to: Taos County, New Mexico. Father Cassidy, the Catholic priest of the parish of Penasco… https://www.rawpixel.com/image/12292095/photo-image-face-flower-plantFree Image from public domain licensePenasco, Taos County, New Mexico. Domestic science class in a high school which is supported by the state but administered… https://www.rawpixel.com/image/12291008/photo-image-people-public-domain-womanFree Image from public domain licenseTest tubes containing bovine tubercular bacteria at Division of Pathology, United States Department of Agriculture… https://www.rawpixel.com/image/12266972/photo-image-public-domain-laboratoryFree Image from public domain license[Untitled photo, possibly related to: Taos County, New Mexico. Father Cassidy, the Catholic priest of the parish of Penasco… https://www.rawpixel.com/image/12290359/photo-image-face-people-public-domainFree Image from public domain licensePenasco, Taos County, New Mexico. Domestic science class in a high school which is supported by the state but administered… https://www.rawpixel.com/image/12291293/photo-image-paper-person-artFree Image from public domain licenseChristiansted, Saint Croix Island, Virgin Islands. Science class at the Chrisitansted high school. Sourced from the Library… https://www.rawpixel.com/image/12281187/photo-image-hand-person-public-domainFree Image from public domain licenseChristiansted, Saint Croix Island, Virgin Islands. Domestic science class in the Christiansted high school. Sourced from the… https://www.rawpixel.com/image/12279911/photo-image-people-light-laptopFree Image from public domain license[Untitled photo, possibly related to: Some of the thousands of baby chicks brought by FSA (Farm Security Administration) as… https://www.rawpixel.com/image/12277259/photo-image-background-cat-artFree Image from public domain license[Untitled photo, possibly related to: Doctor examines fractured arm, FSA (Farm Security Administration) camp clinic… https://www.rawpixel.com/image/12252808/photo-image-face-hand-personFree Image from public domain licenseNew Christian Science Church. Reno, Nevada. Sourced from the Library of Congress. https://www.rawpixel.com/image/12275647/photo-image-plant-tree-public-domainFree Image from public domain license[Untitled photo, possibly related to: Doctor examines fractured arm, FSA (Farm Security Administration) camp clinic… https://www.rawpixel.com/image/12254025/photo-image-face-hand-personFree Image from public domain license[Untitled photo, possibly related to: Charlotte Court House, Virginia. Central High School. Social science class]. Sourced… https://www.rawpixel.com/image/12296829/photo-image-person-public-domain-womanFree Image from public domain licensePackaging butter. Land O'Lakes plant, Minneapolis, Minnesota. Sourced from the Library of Congress. https://www.rawpixel.com/image/12286409/photo-image-plant-person-technologyFree Image from public domain licenseErlenmeyer flasks full of liquid and wood samples. Forest Products laboratory, Madison, Wisconsin by Russell Lee https://www.rawpixel.com/image/12147584/image-art-vintage-forestFree Image from public domain licensePenasco, Taos County, New Mexico. Domestic science class in a high school which is supported by the state but administered… https://www.rawpixel.com/image/12291857/photo-image-people-book-technologyFree Image from public domain license[Untitled photo, possibly related to: Kingman (vicinity), Arizona. Mr. Relling, in the laboratory, analyzing tungsten ore… https://www.rawpixel.com/image/12297283/photo-image-face-plant-personFree Image from public domain license