Jean Baptiste Lamarck Public domain photograph of a portrait, illustration, engraving, free to use, no copyright restrictions image - Picryl description
Geological map of naples bay and the surrounding area
Sewer trap
Residential sewer system Public domain photograph of architectural diagram, building plan, section, free to use, no copyright restrictions image - Picryl description
Series of sunspots across the sun
Castle of ischia
Coast of Ischia seen from the west
Homemade telescope tube and lenses
Appearance of the sunspots on July 25
The homemade telescope supports
Alexander Von Humboldt
Tooth of iguanodon
Articles from prehistoric Swiss objects
Hydrogen burst of a sun flare
Jaw section of an iguana
The Saybolt kerosene vapor tester
The completed telescope eyepiece
Lenstrum apparatus for measuring the Aurora borealis
Indian hut in the Tiera Caliente
A home made microphone
Liebermann kerosene fume tester
Iguanodon bernissartensis
Feathered serpent
Orbits of comets of 1812 and 1846 Public domain scan of settlement or building architecture plan, free to use, no copyright restrictions image - Picryl description
Well formed healthy foot Public domain photograph of 19th-century drawing, person, portrait, free to use, no copyright restrictions image - Picryl description
Hoof of an unshod horse
Toltec palace at Tula
Etienne Geoffroy Saint Hillaire
A primitive lake dwelling in Switzerland
Simple kerosene vapor tester
Ormsby MacKnight Mitchel
Result of a cramping by shoes
Chart of disciplinary actions at Yale college
Iguanodon
Popocatepetl
Distorted foot of a Chinese woman
Bunyons complicated by deformity
Silver Mill at Pachuca
Pyramids of San Juan Teotihuacan
Foot deformed by inflammation of the joints
Exostosis of the bone
Aztec temple at Cholula
Splay or flat foot
Female feet deformed by high heel narrow small shoes
Offset bone structure interferes with proper foot function
Charles William Siemens
Appearance of Jupiter during Sun flare activity
Quetzalcoatl Public domain photograph of statue, sculpture, free to use, no copyright restrictions image - Picryl description
Demonstrating the law of conjugate foci
Deforming pressure of high heels on the foot bone structure
Outline of sole for comfort versus style
Proper position of the foot on the ground
Bunyons and onyxitis
Outlines of a normal foot and a cramping shoe
Overlapping photo exposures of two lightnings
Women and children shoes designed for comfort Public domain photograph of boots, shoes, footwear, free to use, no copyright restrictions image - Picryl description
A wedge toed shoe
Siemens and Halske electric locomotive at the 1881 Paris exposition. This first electric mining locomotive was the second electric locomotive altogether. She ran 45 years from 1882 until 1927, and was named Do More
Overlapping photo exposures of multiple lightnings
Voltage accumulator for the electric train Public domain photograph of a steam locomotive, engine, train, railroad, free to use, no copyright restrictions image - Picryl description
Augustus William Hofmann
Explanation of the law of conjugate foci
Illuminating the back of the eye
Dynamo motor for electric train Public domain photograph of electric motor, free to use, no copyright restrictions image - Picryl description
Edison proposed electric train at the Chicago exhibition Public domain photograph of a steam locomotive, engine, train, railroad, free to use, no copyright restrictions image - Picryl description