A young woman is leaning against a wall reading a book as snowflakes fall. Wood engraving by Dalziel Brothers, 1863, after… https://www.rawpixel.com/image/13956906/image-cartoon-plant-personFree Image from public domain licenseFifteen French doctors wearing aprons and holding various instruments. Colour lithograph by A. Barrère, ca. 1903. https://www.rawpixel.com/image/13959298/image-cartoon-people-bookFree Image from public domain licenseFourth International Congress of Zoology , Cambridge University; nine scientists, in academic dress. Photograph by F.J.… https://www.rawpixel.com/image/14020149/photo-image-person-clothing-manFree Image from public domain licenseBritish Association for the Advancement of Science: speakers at its meeting in Cambridge in 1904. Drawing by A.S. Boyd, 1904. https://www.rawpixel.com/image/14004778/image-paper-cartoon-faceFree Image from public domain license