Specht's brothers were the wood engraver Carl Gottlob Specht and the animal painter and illustrator Friedrich Specht.
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Like his brother Friedrich Specht, he also produced illustrations of animals and landscapes for a number of publications, such as Brehms Tierleben and Die Gartenlaube.
Perhaps the greatest change in the second edition was the addition of new illustrations by Gustav Mützel, the brothers August and Friedrich Specht and others, which Charles Darwin said were the best he had ever seen.
He provided illustrations of animals and landscapes for a large number of zoology and veterinary science publications, notably for the first edition of Brehms Tierleben (1864–69) conceived by Alfred Edmund Brehm, Brockhaus and Efron Encyclopedic Dictionary (1890—1907), Karl Christoph Vogt's Die Säugetiere in Wort und Bild (1883–89) and Richard Lydekker's Royal Natural History (1894–96).
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His brothers were the wood engraver Carl Gottlob Specht and the wildlife painter August Specht (1849–1923).
Friedrich Nietzsche | Friedrich Schiller | Friedrich Engels | Carl Friedrich Gauss | Karl Friedrich Schinkel | Friedrich Dürrenmatt | Friedrich Hayek | Caspar David Friedrich | Georg Wilhelm Friedrich Hegel | Friedrich Hölderlin | Friedrich Gustav Jakob Henle | Friedrich Ebert | Friedrich Wilhelm Joseph Schelling | Karl Wilhelm Friedrich Schlegel | Friedrich Gulda | Friedrich Rückert | Friedrich Paulus | Johann Friedrich Böttger | Friedrich von Huene | Friedrich List | Friedrich | Christian Heinrich Friedrich Peters | Johann Friedrich Blumenbach | Friedrich Wilhelm Freiherr von Bülow | Friedrich Specht | Friedrich Schleiermacher | Friedrich Schlegel | Friedrich Karl Dörner | Friedrich Fröbel | Friedrich de la Motte Fouqué |