Astronomy and mathematics: Samuel Vince reading in his rooms at Sidney Sussex College, Cambridge, by the light of a shaded… https://www.rawpixel.com/image/14005962/image-cats-cartoon-personFree Image from public domain licenseErosion. Cotton was grown on this field twenty-five years ago. Chilton County, Alabama. Sourced from the Library of Congress. https://www.rawpixel.com/image/12271482/photo-image-plant-sky-treeFree Image from public domain license[Untitled photo, possibly related to: Erosion. Cotton was grown on this field twenty-five years ago. Chilton County… https://www.rawpixel.com/image/12271628/photo-image-plant-forest-treeFree Image from public domain license[Untitled photo, possibly related to: Erosion. Cotton was grown on this field twenty-five years ago. Chilton County… https://www.rawpixel.com/image/12271994/photo-image-person-mountain-public-domainFree Image from public domain license[Untitled photo, possibly related to: Erosion. Cotton was grown on this field twenty-five years ago. Chilton County… https://www.rawpixel.com/image/12271668/photo-image-plant-tree-mountainFree Image from public domain license[Untitled photo, possibly related to: Erosion. Cotton was grown on this field twenty-five years ago. Chilton County… https://www.rawpixel.com/image/12271991/photo-image-plant-forest-treeFree Image from public domain license[Untitled photo, possibly related to: Erosion. Cotton was grown on this field until twenty-five years ago. Note terraces.… https://www.rawpixel.com/image/12271982/photo-image-plant-grass-skyFree Image from public domain licenseErosion. Cotton was grown on this field until twenty-five years ago. Note terraces. Chilton County, Alabama. Sourced from… https://www.rawpixel.com/image/12271662/photo-image-plant-tree-public-domainFree Image from public domain license[Untitled photo, possibly related to: Erosion. Cotton was grown on this field twenty-five years ago. Chilton County… https://www.rawpixel.com/image/12271978/photo-image-plant-forest-treeFree Image from public domain license[Untitled photo, possibly related to: Erosion. Cotton was grown on this field twenty-five years ago. Chilton County… https://www.rawpixel.com/image/12271487/photo-image-plant-forest-treeFree Image from public domain license[Untitled photo, possibly related to: Erosion. Cotton was grown on this field twenty-five years ago. Chilton County… https://www.rawpixel.com/image/12271449/photo-image-plant-forest-treeFree Image from public domain license[Untitled photo, possibly related to: Erosion. Cotton was grown on this field twenty-five years ago. Chilton County… https://www.rawpixel.com/image/12271457/photo-image-plant-tree-mountainFree Image from public domain license[Untitled photo, possibly related to: Erosion. Cotton was grown on this field twenty-five years ago. Chilton County… https://www.rawpixel.com/image/12271443/photo-image-plant-forest-treeFree Image from public domain license