Popular Lectures on Human Nature, a book cover illustration by an unknown artist referencing Prof. W.G Alexander. Original… https://www.rawpixel.com/image/429751/free-illustration-image-brain-book-vintageFree Image from public domain licenseRisograph PSD effect photoshop add-on remixed media https://www.rawpixel.com/image/3870756/illustration-psd-background-face-textureView licenseA man standing on jagged rocks in a fast-flowing river in the wilderness. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3282300/free-photo-image-nature-california-riverFree Image from public domain licenseStudents psd holding megaphone speaking at human rights demonstration with colorful floral media collage https://www.rawpixel.com/image/2802538/premium-psd-collage-feminism-womens-dayView licenseCaptive chimpanzee . https://www.rawpixel.com/image/11955989/captive-chimpanzee-generated-image-rawpixelView licenseEl Palacio de las Palomas, Uxmal (The Palace of the Pigeons, Uxmal) (1893) by Teobert Maler https://www.rawpixel.com/image/10051637/photo-image-people-building-castleFree Image from public domain licenseGirls Picking Apples (1915) by Edvard Munch. Original from The MET Museum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2043770/girls-picking-applesFree Image from public domain licenseThe Clouded Tiger from Zoological sketches (1861-1867) by Joseph Wolf and Philip Lutley Sclater. Digitally enhanced by… https://www.rawpixel.com/image/16594833/image-cat-jungle-tigersFree Image from public domain licenseThe Hippopotamus from Zoological sketches (1861-1867) by Joseph Wolf and Philip Lutley Sclater. Digitally enhanced by… https://www.rawpixel.com/image/16594795/image-lion-animal-birdFree Image from public domain licenseLandscape with Bridge, Cattle, and Figures (c. 1660) by Jacob van Ruisdael https://www.rawpixel.com/image/9798752/landscape-with-bridge-cattle-and-figures-c-1660-jacob-van-ruisdaelFree Image from public domain licenseItalian Landscape with a Pair of Shepherds (1795) by Johann Heinrich Meyer https://www.rawpixel.com/image/10027022/italian-landscape-with-pair-shepherds-1795-johann-heinrich-meyerFree Image from public domain licenseBarnyard Scene (19th century) by Imitator of Jean Baptiste Camille Corot https://www.rawpixel.com/image/9775731/barnyard-scene-19th-century-imitator-jean-baptiste-camille-corotFree Image from public domain licenseThe Rocky Beach and Cliffs at Fécamp (mid-1830s) by Edward William Cooke https://www.rawpixel.com/image/10038234/the-rocky-beach-and-cliffs-fecamp-mid-1830s-edward-william-cookeFree Image from public domain licenseRoad by the Water (c. 1865–70) by Jean Baptiste Camille Corot https://www.rawpixel.com/image/9785974/road-the-water-c-1865-70-jean-baptiste-camille-corotFree Image from public domain licenseNeapolitan Children Bathing (1879) by John Singer Sargent https://www.rawpixel.com/image/9783878/neapolitan-children-bathing-1879-john-singer-sargentFree Image from public domain licenseA River Landscape with Two Cows and a Figure on a Bridge (18th century) by Style of Thomas Gainsborough https://www.rawpixel.com/image/9793349/image-clouds-cows-animalFree Image from public domain licenseThe Glärnisch Massif in Switzerland (c. 1790) by Swiss 18th Century https://www.rawpixel.com/image/10025606/the-glarnisch-massif-switzerland-c-1790-swiss-18th-centuryFree Image from public domain licenseYoung Woman in an English Garden (c. 1795) by Martin Drölling https://www.rawpixel.com/image/9791179/young-woman-english-garden-c-1795-martin-drollingFree Image from public domain licenseLane to the Village (19th century) by Artist Unknown, British and 19th Century https://www.rawpixel.com/image/9775801/lane-the-village-19th-century-artist-unknown-british-and-19th-centuryFree Image from public domain licenseA Temple Ruin in Agrigento (c. 1825) by Carl Wilhelm Götzloff https://www.rawpixel.com/image/10034022/temple-ruin-agrigento-c-1825-carl-wilhelm-gotzloffFree Image from public domain licenseThe Woman with the Irises (1898) by Georges Alfred Bottini https://www.rawpixel.com/image/9776029/the-woman-with-the-irises-1898-georges-alfred-bottiniFree Image from public domain licenseArcadian Landscape with an Obelisk (1785) by Salomon Gessner https://www.rawpixel.com/image/10040265/arcadian-landscape-with-obelisk-1785-salomon-gessnerFree Image from public domain licenseWood Gatherers: An Autumn Afternoon (1891) by George Inness https://www.rawpixel.com/image/9776865/wood-gatherers-autumn-afternoon-1891-george-innessFree Image from public domain licenseWilly Lott's House (recto); Landscape Sketches with Trees and Church Tower (verso) (c. 1812–13 (recto); c. 1811–13) by John… https://www.rawpixel.com/image/9790860/image-scenery-sky-personFree Image from public domain licenseGallerie des modes et costumes français dessinés d'après nature, gravés par les plus célèbres artistes en ce genre, et… https://www.rawpixel.com/image/10024410/image-hand-face-personFree Image from public domain licenseThe Farm-Yard in Winter (1861) by George Henry Durrie, Currier and Ives and Currier and Ives https://www.rawpixel.com/image/10045897/image-cow-animals-birdFree Image from public domain licenseHome to Thanksgiving (1867) by John Schutler, George Henry Durrie, Currier and Ives and Currier and Ives https://www.rawpixel.com/image/10054266/image-dog-horse-cowFree Image from public domain licenseDog Teams, Nome (1903–6) by Attributed to Beverly Bennett Dobbs https://www.rawpixel.com/image/9775039/dog-teams-nome-1903-6-attributed-beverly-bennett-dobbsFree Image from public domain licenseKagurazaka Street after Night Rain (1929) by Yoshida Hiroshi https://www.rawpixel.com/image/9774459/kagurazaka-street-after-night-rain-1929-yoshida-hiroshiFree Image from public domain licenseThe Oxford Arms, Warwick Lane (1875) by Alfred H Bool and John Bool https://www.rawpixel.com/image/10047908/the-oxford-arms-warwick-lane-1875-alfred-bool-and-john-boolFree Image from public domain licenseExtensive Landscape with Clouds (c. 1850) by Lionel Bicknell Constable https://www.rawpixel.com/image/9787696/extensive-landscape-with-clouds-c-1850-lionel-bicknell-constableFree Image from public domain licenseThe Kannon of the Pure Waterfall at Sakanoshita on the Tōkaidō Road (1832) by Katsushika Hokusai https://www.rawpixel.com/image/9790071/image-waterfall-person-artFree Image from public domain licenseRockets and Blue Lights (Close at Hand) to Warn Steamboats of Shoal Water (1840) by Joseph Mallord William Turner https://www.rawpixel.com/image/9788442/image-clouds-hand-lightsFree Image from public domain licenseAcross Country (A travers champs) (1897/1898 (published 1899)) by Ambroise Vollard, Edouard Vuillard and Edouard Vuillard https://www.rawpixel.com/image/10052688/image-grass-flower-plantFree Image from public domain licenseItalian Coast Scene with Ruined Tower (1838) by Thomas Cole https://www.rawpixel.com/image/10041090/italian-coast-scene-with-ruined-tower-1838-thomas-coleFree Image from public domain licenseBather Arranging Her Hair (1885) by Pierre Auguste Renoir https://www.rawpixel.com/image/9783022/bather-arranging-her-hair-1885-pierre-auguste-renoirFree Image from public domain licenseFellah Women Drawing Water (c. 1873–75) by Jean Léon Gérôme https://www.rawpixel.com/image/9784320/fellah-women-drawing-water-c-1873-75-jean-leon-geromeFree Image from public domain licenseApple Trees in a Field (c. 1865–70) by Jean Baptiste Camille Corot https://www.rawpixel.com/image/9786014/apple-trees-field-c-1865-70-jean-baptiste-camille-corotFree Image from public domain licenseLandscapes and Interiors: Through the Fields (1899) by Édouard Vuillard https://www.rawpixel.com/image/9775981/landscapes-and-interiors-through-the-fields-1899-edouard-vuillardFree Image from public domain licenseCutout of Animals (second quarter 19th century) by American 19th Century https://www.rawpixel.com/image/10034740/cutout-animals-second-quarter-19th-century-american-19th-centuryFree Image from public domain licenseThe Apse of Notre Dame de Paris Seen from the Seine (1900) by Paul Berthon https://www.rawpixel.com/image/9775491/the-apse-notre-dame-paris-seen-from-the-seine-1900-paul-berthonFree Image from public domain licenseNew Bedford, Massachusetts (1860-1870) by William Allen Wall https://www.rawpixel.com/image/10045120/new-bedford-massachusetts-1860-1870-william-allen-wallFree Image from public domain licenseBrutus Condemning His Sons to Death (1788) by Guillaume Lethière https://www.rawpixel.com/image/9795104/brutus-condemning-his-sons-death-1788-guillaume-lethiereFree Image from public domain licenseA Village Street in Northern Italy (1874) by Eugenio Gignous https://www.rawpixel.com/image/10047667/village-street-northern-italy-1874-eugenio-gignousFree Image from public domain licenseFemme Malgache et Ses Enfants (Madagascan Woman and Her Children) (Plate 3) (1863) by Désiré Charnay https://www.rawpixel.com/image/10046245/photo-image-face-people-manFree Image from public domain licenseYoung Girl Guarding her Sheep (c. 1860–62) by Jean François Millet https://www.rawpixel.com/image/9786922/young-girl-guarding-her-sheep-c-1860-62-jean-francois-milletFree Image from public domain licenseThe Loing and the Mills of Moret, Snow Effect (1891) by Alfred Sisley https://www.rawpixel.com/image/9777067/the-loing-and-the-mills-moret-snow-effect-1891-alfred-sisleyFree Image from public domain licenseA Summer Evening at the Lago Maggiore (1845) by Salomon Corrodi https://www.rawpixel.com/image/10042290/summer-evening-the-lago-maggiore-1845-salomon-corrodiFree Image from public domain licenseLaundresses at Low Tide, Étretat (1866 or 1869) by Gustave Courbet https://www.rawpixel.com/image/9786124/laundresses-low-tide-etretat-1866-1869-gustave-courbetFree Image from public domain licenseA Wooded Lakeside with an Italianate Villa (1796) by Ludwig Hess https://www.rawpixel.com/image/10027084/wooded-lakeside-with-italianate-villa-1796-ludwig-hessFree Image from public domain licenseOstrich Chase, Buenos Aires - Auca (1854/1869) by George Catlin https://www.rawpixel.com/image/10043812/ostrich-chase-buenos-aires-auca-18541869-george-catlinFree Image from public domain licenseWooded Landscape with Figures outside a Cottage (1795) by Amelia Noel https://www.rawpixel.com/image/10026987/wooded-landscape-with-figures-outside-cottage-1795-amelia-noelFree Image from public domain license