Se Claes Visscher.
Né ā Paris en 1795 est un géographe franįais.
Auguste Henri Dufour étudia avec Lapie et travailla avec lui ā plusieurs cartes du Dépot de la Marine. En 1824, il publia pour la premičre fois, sous son nom seul, une Analyse géographique de la carte de Palestine, et prit part dčs ce moment ā une foule de publications historiques ou topographiques dont il dressa et dessina les plans et les cartes. Ses ouvrages principaux sont :
* l'atlas élémentaire et universel de géographie ancienne et moderne (1828)
* plusieurs Précis de systčme planétaire et de cosmographie
* l'atlas joint ā la France illustrée de Victor Adolphe Malte-Brun (1855)
* l'atlas Dufour, atlas universel, physique, historique et politique de la France, de ses départements et de ses colonies (106 cartes). (1857)
Parmi les élčves d'Auguste Henri Dufour figure Alexandre Vuillemin.
Deleuze, Jacques-Antoine-Henri
Var ansvarig för de ca 1030 artiklarna om botanik och naturhistoria i Yverdon-encyclopedin.
Bland arbeten.
Encyclopédie ou dictionnaire universel raisonné des connaissances humaines.
Amiral Häggs flaggkarta. - Stockholm 1888.
Grönkulla, Habenaria viridis - Lindman, C. A. M, Bilder ur Nordens Flora 1917-26.
Frisius, Gemma. [Reinerszoon, Jemme.]
Biografiska uppgifter:9 december 1508 - 25 maj 1555.
Gemma Frisius was a physician, mathematician, cartographer, philosopher, and instrument maker. He created important globes, improved the mathematical instruments of his day and applied mathematics in new ways to surveying and navigation.
Frisius was born in Dokkum, Friesland (present-day Netherlands) of poor parents, who died when he was young. He moved to Groningen and studied at the University in Leuven beginning in 1525. He received the degree of MD in 1536 and remained on the faculty of medicine in Leuven for the rest of his life. His oldest son, Cornelius Gemma, edited a posthumous volume of his work and continued to work with Ptolemaic astrological models.
While still a student, Frisius set up a workshop to produce globes and mathematical instruments. He became noted for the quality and accuracy of his instruments, which were praised by Tycho Brahe, among others. In 1533, he described for the first time the method of triangulation still used today in surveying. Twenty years later, he was the first to describe how an accurate clock could be used to determine longitude. Jean-Baptiste Morin (15831656) did not believe that Frisius' method for calculating longitude would work, remarking, 'I do not know if the Devil will succeed in making a longitude timekeeper but it is folly for man to try.'
Frisius created or improved many instruments, including the cross-staff, the astrolabe and the astronomical rings. His students included Gerardus Mercator (who became his collaborator), Johannes Stadius, John Dee, Andreas Vesalius and Rembert Dodoens.
A lunar crater has been named after him.
Bland arbeten:
(Cosmographia (1529) von Petrus Apianus, annotated by Gemma Frisius)
De principiis astronomiae et cosmographiae (1530)
De usu globi (1530)
Libellus de locorum describendorum ratione (1533)
Arithmeticae practicae methodus facilis (1540)
De annuli astronomici usu (1540)
De radio astronomico et geometrico (1545)
De astrolabio catholico (1556)
