People using Anios disinfectant to destroy microbes representing infectious diseases. Colour lithograph by G. de Trye… https://www.rawpixel.com/image/13952576/image-cartoon-face-personFree Image from public domain licenseA travelling showman in the Netherlands showing animalcules to children. Oil painting by a Dutch painter, ca. 1840. https://www.rawpixel.com/image/13965217/image-dog-frame-personFree Image from public domain licenseA travelling showman in the Netherlands showing animalcules to children. Oil painting by a Dutch painter, ca. 1840. https://www.rawpixel.com/image/13980093/image-dog-cartoon-faceFree Image from public domain licenseEmployment for the microscope ... I. An examination of salts and saline substances ... also ... considerations on gems… https://www.rawpixel.com/image/13995041/image-paper-cartoon-artFree Image from public domain licenseEmployment for the microscope ... I. An examination of salts and saline substances ... also ... considerations on gems… https://www.rawpixel.com/image/13984605/image-paper-plant-artFree Image from public domain licenseEmployment for the microscope ... I. An examination of salts and saline substances ... also ... considerations on gems… https://www.rawpixel.com/image/14000057/image-paper-cartoon-artFree Image from public domain licenseA variety of animalcules, including opercularias, nebuliferas and digitalis. Line engraving by Milton. https://www.rawpixel.com/image/13994865/image-paper-flower-plantFree Image from public domain licenseA travelling showman in the Netherlands showing animalcules to children. Oil painting by a Dutch painter, ca. 1840. https://www.rawpixel.com/image/13959685/image-dog-person-artFree Image from public domain licenseA travelling showman in the Netherlands showing animalcules to children. Oil painting by a Dutch painter, ca. 1840. https://www.rawpixel.com/image/13969885/image-dog-person-artFree Image from public domain license