Notes on the propagation and cultivation of the medicinal Cinchonas, or Peruvian bark trees / by William Graham McIvor. https://www.rawpixel.com/image/14021596/image-paper-cartoon-treesFree Image from public domain licenseSouth Africa: Barkly Bridge over the Vaal River and a barge. Woodburytype, 1888, after a photograph by Robert Harris. https://www.rawpixel.com/image/13983648/photo-image-horse-plant-personFree Image from public domain licenseNotes on the propagation and cultivation of the medicinal Cinchonas, or Peruvian bark trees / by William Graham McIvor. https://www.rawpixel.com/image/13982065/image-paper-cartoon-plantFree Image from public domain licenseWood debarker stripping bark off of tree at mill near Darby, September 1978. Original public domain image from Flickr https://www.rawpixel.com/image/3335667/free-photo-image-animal-bark-cc0Free Image from public domain licenseMother of the Forest; 305 feet high; 65 feet circumference; bark off 121 feet. by Lawrence and Houseworth https://www.rawpixel.com/image/14295150/photo-image-paper-plant-treeFree Image from public domain licenseBeige rock textured surface background https://www.rawpixel.com/image/2309665/free-photo-image-backdrop-background-photos-textureView licenseTwo large dogs growling and barking at a small dog with a bone outside its kennel. Etching by J. G. Winter. https://www.rawpixel.com/image/13971751/image-dog-cartoon-plantFree Image from public domain licenseGnarled Oak Tree near l'Epine Crossroads by Gustave Le Gray https://www.rawpixel.com/image/14276400/gnarled-oak-tree-near-lepine-crossroads-gustave-grayFree Image from public domain licenseCloseup of tree bark wallpaper https://www.rawpixel.com/image/442062/free-photo-image-background-bark-closeupView licenseAbout two miles of plastic tubing run through the woods at Springboro Tree Farms in Brookston, Indiana as part of the farm’s… https://www.rawpixel.com/image/11071466/photo-image-plant-plastic-leafFree Image from public domain licenseChippeway Wigwams, constructed of Birch Bark. by Charles A Zimmerman https://www.rawpixel.com/image/14301816/chippeway-wigwams-constructed-birch-bark-charles-zimmermanFree Image from public domain licenseTexture background for motion picture and filmstrip. Bark of cedar tree. Sourced from the Library of Congress. https://www.rawpixel.com/image/12323947/image-background-texture-plantFree Image from public domain licenseTexture background for motion picture and filmstrip. Bark of oak tree. Sourced from the Library of Congress. https://www.rawpixel.com/image/12323691/image-background-texture-patternFree Image from public domain licenseThe Munsong cinchona plantation, Kalimpong, Bengal, India: scraping cinchona bark (used to produce the anti-malarial drug… https://www.rawpixel.com/image/13987224/photo-image-jungle-plant-personFree Image from public domain licenseClose up of rustic textured wood pattern https://www.rawpixel.com/image/525235/free-illustration-vector-backdrop-background-boardView licenseBonaventure. Spanish moss from twigs "Resumation" fern along bark. Tree is an evergreen oak - one of the willow leaf… https://www.rawpixel.com/image/14302711/photo-image-face-plant-personFree Image from public domain licensePeruvian bark : a popular account of the introduction of chinchona cultivation into British India, 1860-1880 / by Clements… https://www.rawpixel.com/image/13987860/image-cartoon-plant-personFree Image from public domain licenseNotes on the propagation and cultivation of the medicinal Cinchonas, or Peruvian bark trees / by William Graham McIvor. https://www.rawpixel.com/image/13983432/image-paper-cartoon-plantFree Image from public domain licenseTree growing in the sand. Visit Kaboompics for more free images. https://www.rawpixel.com/image/435817/free-photo-image-seaside-bark-beachView licenseTexture background for motion picture and filmstrip titles. Bark of American Elm. Sourced from the Library of Congress. https://www.rawpixel.com/image/12323665/image-background-texture-plantFree Image from public domain licenseNotes on the propagation and cultivation of the medicinal Cinchonas, or Peruvian bark trees / by William Graham McIvor. https://www.rawpixel.com/image/13992035/image-paper-cartoon-treesFree Image from public domain licenseTre surfacapuda vido sur muskkovrita horizontala arbbranĉo, kontraŭ malfokusa foliara kaj bluĉiela fono.. Original public… https://www.rawpixel.com/image/3295370/free-photo-image-algae-bark-brown-backgroundFree Image from public domain licenseConcrete textured background https://www.rawpixel.com/image/327612/free-photo-image-attractive-backdrop-backgroundView licenseThe lace-bark (Hoheria) in full bloom (02 April 1960) by Leslie Adkin. https://www.rawpixel.com/image/13031092/the-lace-bark-hoheria-full-bloom-02-april-1960-leslie-adkinFree Image from public domain licenseAn account of the voyages undertaken by the order of His present Majesty for making discoveries in the Southern Hemisphere… https://www.rawpixel.com/image/14015921/image-paper-cloud-frameFree Image from public domain license