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171 results
  • Xenopus frog egg removal, eggs in beaker
  • "the frog-fish of Surinam" George Edwards
  • Ludwig and Coats'a frog-heart apparatus.
  • Xenopus frog on ice awaiting removal of eggs
  • Xenopus frog on ice awaiting removal of eggs
  • Xenopus frog on ice awaiting removal of eggs
  • Xenopus frog on ice awaiting removal of eggs
  • A male and female frog courting, watched by a frog voyeur. Photograph by J.P. Soule, 1876, after a drawing by F(?). Lord.
  • Xenopus frog egg removal for patch clamping studies
  • Xenopus frog egg removal for patch clamping studies
  • A bull frog. Coloured etching by J. Heath, 1802.
  • Radiograph: frog with a broken leg that has healed.
  • Spermatozoa of a frog. Photomicrograph by Léon Foucault, 1844.
  • Blood corpuscles of a frog. Photomicrograph by Léon Foucault, 1844.
  • Blood corpuscles of a frog. Photomicrograph by Léon Foucault, 1844.
  • A Bengali proverb: two watersnakes swallowing fish and frog. Watercolour drawing.
  • A Bengali proverb: two watersnakes swallowing fish and frog. Watercolour drawing.
  • Inflamed vessels in the web of a frog and plant cells
  • A contortionist wearing a frog costume, in several poses. Process print, 190-.
  • A contortionist wearing a frog costume, in several poses. Process print, 190-.
  • The skeleton of a hedgehog, lizard, bat, frog, crocodile and dog. Engraving.
  • Doctrine of signatures: (above) a plant (acanthus) with seed-pods resembling a frog, and (below) the head of a frog. Coloured ink drawing by C. Etheridge, 1906, after G.B. Della Porta.
  • The skeletal remains of a frog above a lake with water lilies. Etching.
  • A bird of prey prepares to swoop on a mouse and a frog in water; illustrating Aesop's fable of the frog and the mouse. Etching by C. Murer after himself, c. 1600-1614.
  • A common toad, frog, tortoise and eel-shaped siren. Etching by J. Scott, ca. 1808.
  • A frog sitting on the shore of a lake. Wood engraving by J. W. Whimper.
  • A male and female frog promenading. Photograph by J.P. Soule, ca. 1876, after a drawing.
  • A young man chances on a gigantic yellow frog. Drawing attributed to Edwin Harcourt Burrage, 18--.
  • A frog sitting on the shore of a lake. Coloured wood engraving by J. W. Whimper.
  • A Chinese sage, accompanied by his young assistant, blesses a frog. Painting by a Chinese artist.