Sherlock Holmes and Dr. Watson Spine anatomy Durer's Rhinoceros, 1515 Rhazes, Islamic scholar Flame emission spectra of alkali metals Butterflies, artwork Newton's optics Olive trees, Puglia, Italy, Europe Standard electrical circuit symbols Development of the English alphabet Early electrical equipment Shelduck, historical artwork Egyptian creation myth Spine anatomy Foot anatomy by Leonardo da Vinci Body musculature 16th century map of Venice Features of fingerprints Rorschach Inkblot Test Iron pyrites Distillation, 16th century woodcut Legend of Archimedes and the lever Nicolaus Copernicus, Polish astronomer Computer hard disk assembly Early electric lamps Body musculature Muscles of the side and back Torso bones Homeric cosmogony Johannes Kepler and Tycho Brahe Hughes' printing telegraph Foot bones Phonetic Egyptian hieroglyphs Phrenology chart Muscles of the foot Muscles of lower leg Early petrol locomotives Spinal bones and ligaments Zenobe Gramme Muscles of the hand and forearm Red kite, historical artwork Mappa Mundi by La Cosa in 1500 Early electric train Early video phone system, 1930 Facial nerves Galileo Measuring electric voltage Standard electrical circuit symbols Page 2 Page 3