Född 1707 19/12 i Bettna sn (Söd.), död 1747 12/1 i Stockholm (Jakob).
Brukspredikant och komminister. Kopparstickare. Son av kyrkoherden Anders G. Och Catharina Bergander. Elev av Johan van den Aveelen o. 1724. Student vid Uppsala universitet 1725, brukspredikant vid Vällinge i Salems sn (Sthlm) 1737, komminister i Jakobs och Johannes församlingar i Stockholm 1740. Kusinen C. E. Bergquist har graverat ett porträtt av sin lärare Geringius med följande omskrift:
»Den oss i koppar har så mänga bilder visat
Blir här i koppar sjelf af eftervärlden prisat
Som prest och konstnär har han tjent sitt fosterland
Var nitisk i sitt kall och konstrik i sin hand.»
Bland arbeten.
O. CELSIUS d. ä., De insula Melita, diss., resp. A. Geringius, Uppsala 1725: karta över Malta.
Antependium i Riddarholmskyrkan, 1726, kpst., avsett för J. Possieths tillämnade beskrivning över Riddarholmskyrkan.
P. TILLAEUS, Karta över Stockholm, efter P. Wallrave, 1733, utförd i samarbete med C. E. Bergquist, jämte porträtt av Fredrik I, efter M. Mijtens, kpst.
Karta över Mälaren, 1739.
Karta över Södermanland, 1743.
M. A. SAHLSTEDT, Stora Tuna i Dahlom och Bergom minnesdöme, Sthlm 1743: karta över Stora Tuna.
Hultmark, 1944.
1607-74.
An engraver and publisher active in Antwerp who produced a small number of maps including one of the British Isles based on an earlier map by N. Visscher.
Född 1714 27/2 i Stockholm (Maria), död 1790 19/5 i Stenkvista sn (Söd.).
Lantmätare. Kopparstickare och kartograf. Son av notarien i Södra förstadens kämnersrätt Johan B. och Maria Burgman. Student vid Uppsala universitet 1733. Avlade lantmäteriexamen 1742. Lantmätare i Stockholms län 1747-85. Var en tid aktör och har översatt dramer av Corneille och Molière.
Bland arbeten.
Karta över Drottningholm med utsikt av slottet.
Hultmark, 1944.
Gulddistriktet Klondike - ca 1897.
Marstrand - O. J. Hagelstam 1803.
Cassini de Thury, César-François
Biografiska uppgifter:17 June 1714 – 4 September 1784
César-François Cassini de Thury (17 June 1714 – 4 September 1784), also called Cassini III or Cassini de Thury, was a French astronomer and cartographer.
Cassini de Thury was born in Thury-sous-Clermont (Oise), the second son of Jacques Cassini and Suzanne Françoise Charpentier de Charmois. He was a grandson of Giovanni Domenico Cassini, and would become the father of Jean-Dominique Cassini, Comte de Cassini.
In 1735, he became a member of the French Academy of Sciences as a supernumerary adjunct astronomer, in 1741 as an adjunct astronomer, and in 1745 as a full member astronomer.
In January, 1751 he was elected a Fellow of the Royal Society.
He succeeded to his father’s official position in 1756 and continued the hereditary surveying operations. In 1744, he began the construction of a great topographical map of France, one of the landmarks in the history of cartography. Completed by his son Jean-Dominique, Cassini IV and published by the Académie des Sciences from 1744 to 1793, its 180 plates are known as the Cassini map(fr).
The post of director of the Paris observatory was created for his benefit in 1771 when the establishment ceased to be a dependency of the French Academy of Sciences.
His chief works are: La méridienne de l’Observatoire Royal de Paris (1744), a correction of the Paris meridian; Description géométrique de la terre (1775); and Description géométrique de la France (1784), which was completed by his son ('Cassini IV').
César-François Cassini de Thury died of smallpox in Paris on 4 September 1784,
The Cassini projection is a map projection described by César-François Cassini de Thury in 1745. It is the transverse aspect of theequirectangular projection, in that the globe is first rotated so the central meridian becomes the 'equator', and then the normal equirectangular projection is applied.
In practice, the projection has always been applied to models of the earth as an ellipsoid, which greatly complicates the mathematical development but is suitable for surveying. Nevertheless the use of the Cassini projection has largely been superseded by the Transverse Mercator projection, at least with central mapping agencies.
Areas along the central meridian, and at right angles to it, are not distorted. Elsewhere, the distortion is largely in a north-south direction, and varies by the square of the distance from the central meridian. As such, the greater the longitudinal extent of the area, the worse the distortion becomes.
Due to this, the Cassini projection works best on long, narrow areas, and worst on wide areas.
