mathematician, astronomer, geophysicist (Soviet Union) Friedrich Georg Wilhelm von Struve (1793–1864), astronomer (Russia) Georg Hermann Struve (1886–1933), astronomer (Germany) Hermann Struve (1854–1920), astronomer (Russia) Ludwig Struve (1858–1920), astronomer (Russia) Otto Struve (1897–1963), astronomer (Russia, United States) Otto Wilhelm von Struve (1819–1905), astronomer (Russia) Wilfried Struve (1914–1992), astronomer (Germany) Gustav Andreas Tammann (1932–2019), astronomer (Germany, Switzerland) Biologists and paleontologists Hermann Martin Asmuss (1812–1859), paleozoologist (Estonia) Karl Ernst von Baer (1792–1876), biologist, geologist, meteorologist, geographer, founder of embryology Theodor Friedrich Julius Basiner (1816–1842), botanist Friedrich Bidder (1810–1894), physiologist and anatomist (Russia) Theophil Joachim Heinrich Bienert (1833–1873), botanist Alexander von Bunge (1803–1890), botanist (Russia) Karl Ernst Claus (1796–1864), chemist and naturalist Johann Friedrich von Eschscholtz (1793–1831), biologist, physician and explorer (Russia) Gustav Flor (1829–1883), zoologist Peter von Glehn (1835–1876), botanist Alexander von Keyserling (1815–1891), geologist and paleontologist Karl Wilhelm von Kupffer (1829–1902), anatomist Carl Friedrich von Ledebour (1785–1851), botanist (Russia) Harald von Loudon (1876–1959), ornithologist Johann Marcusen (1817–1894), ichthyologist Friedrich Johann Graf von Medem (1912–1984), zoologist Alexander von Middendorff (1815–1894), zoologist and explorer Wilhelm Ostwald (1853–1932), chemist, winner of the Nobel prize in Chemistry Wolfgang Ostwald (1883–1943), chemist and biologist (Germany) Heinz Christian Pander (1794–1865), biologist, embryologist and paleontologist Friedrich Parrot (1791–1841), biologist and medical scientist Christian Nikolai Richard Pohle (1869–1926), botanist Alexander von Schrenk (1816–1876), mineralogist, botanist and expeditionist (Russia) Leopold von Schrenck (1826–1894), zoologist, geographer and ethnographer (Russia) Jakob von Uexküll (1864–1944), biologist and semiotician (Germany) Chemists and material scientists Andreas von Antropoff (1878–1956), chemist, postulated neutronium Karl Ernst Claus (1796–1864), chemist and naturalist Germain Henri Hess (1802–1850), chemist Wilhelm Ostwald (1853–1932), chemist and Nobel laureate (Germany) Wolfgang Ostwald (1883–1943), chemist and biologist (Germany) Carl Schmidt (1822–1894), chemist (Russia) Heinrich Wilhelm von Struve (1822–1908), chemist (Russia) Gustav Tammann (1861–1938), chemist Peter P. von Weymarn (1879–1935), chemist (Russia) Margarete von Wrangell (1877–1932), agricultural chemist and the first female full professor at a German university Earth scientists Karl Ernst von Baer (1792–1876), biologist, geologist, meteorologist, geographer, founder of embryology Karl von Ditmar (1822–1892), geologist and explorer (Russia) Karl Eichwald (1795–1876), geologist and physician (Russia) Gregor von Helmersen (1803–1885), geologist Carl Hiekisch (1840–1901), geographer Alexander Keyserling (1815–1891), geologist and paleontologist Fyodor Litke (Friedrich Benjamin von Lütke, 1797–1898), navigator and geographer (Russia) Otto Schmidt (1891–1956), mathematician, astronomer, geophysicist (Soviet Union) Alexander von Schrenk (1816–1876), mineralogist, botanist and expeditionist (Russia) Leopold von Schrenck (1826–1894), zoologist, geographer and ethnographer (Russia) Georg August Schweinfurth (1836–1925), botanist and explorer