by German soil scientist Carl Emeis (among the founders of the Haide-Cultur-Verein) as the basis for his theory on hardpan and heaths, the first work to explain the role of humic acids in soil. Personal life In 1855 Dalgas married Marie Magdalene Christiane Købke, daughter of Lieutenant Colonel Niels Christian Købke. They had three sons: , a forester and the director of the Danish Heath Society; , director of the Royal Porcelain Manufactory; and philosopher . On 16 April 1894, Dalgas died in Aarhus. They had at least one daughter, Ellen Margareth, who emigrated to Brazil and was the mother of engineer and naturalist Johan Dalgas Frisch. Honours Enrico Dalgas was made a Knight of the Order of the Dannebrog in 1864, received the Cross of Honour of the Order of the Dannebrog in 1867, received the Medal of Merit in Gold in 1875, and was made Commander 1st Class of the Dannebrog in 1887. Dalgas Avenue in Aarhus, Dalgasgade in Herning and Dalgas Boulevard in Copenhagen are named after him, and a number of Danish cities have erected statues of him. Bibliography Oversigt over hederne i Jylland, 1866 Geografiske billeder I og II, 1867–68 Vejledning til træplantning, 1871 Den dybe reolpløjning, 1872 En hederejse i Hannover, 1873 Anvisning til anlæg af småplantninger, 1875–83 Hedemoser og Kærjorder, 1876 Om engvandring, 1877 Om plantning i Jylland, 1877 Hederne og deres Kultivering, 1878 References 1828 births 1894 deaths Soil scientists Foresters Danish naturalists Danish military engineers Danish military officers Danish conservationists Danish civil servants Environmental engineers 19th-century Danish scientists Recipients of the Cross of Honour of the Order of the Dannebrog Commanders First Class of the Order of the Dannebrog Recipients of the Medal of Merit (Denmark) Danish agronomists Burials at Nordre Cemetery Danish civil engineers 19th-century Neapolitan people 19th-century engineers 19th-century Danish military personnel