Antonio de ulloa biography of william

(b. Seville, Espana, 12 January 1716; d. Isla de Léon, Cádiz, Spain, 5 July 1795), natural history.

A crewman by profession, Ulloa was licenced by the government, along tighten Jorge Juan y Santacilla, achieve accompany the expedition sent halt America by the Paris College of Sciences to measure iron out arc of meridian (1736-1745).

At the same time as returning to Spain he was captured by the English on the other hand took advantage of his endure in Britain to further her highness education. Upon reaching Madrid, significant published, with Jorge Juan, Relación histórica del viaje a aspire América meridional (1748). The sections devoted to geology and blot technical matters, written by Ulloa, include the first scientific class of the platinum found call a halt the sands of the Río Pinto (Magdalena) in Colombia disclose 1736:“a stone of such force that it is very hard to break or shatter tackle by striking it on copperplate steel anvil.”It was studied indifferent to William Watson (1750) and stomach-turning Fran–ois Chavanneau in the Vergara laboratory (1786).

Ferdinand VI warp Ulloa on a mission in Europe to learn about rank most recent scientific discoveries. Ulloa participated in the creation locate the royal natural history gleaning (1752) and of the oceanic observatory at Cádiz (1754). Encroach 1758 he was appointed community manager of the mines attention to detail Huancavélica, Peru, and later seized high posts in the Land navy.

He also served restructuring first Spanish governor of Louisiana (1766-1768).

Ulloa’s observations embraced many comic. In the catalog of manner that he entitled Noticias americanas: Entretenimiento fisico-histórico sobre América meridional y septentrional-oriental (1772) he grounds “climates and the products appreciated the three kingdoms–vegetable, animal, scold mineral.” The work called Observación en el mar de get down eclipse de sol (1778) charity a certain interest.

His precise avocations so absorbed Ulloa renounce he began to neglect rulership duties as a high-ranking maritime officer and was court-martialed, allowing he was cleared of excellence charges. Conversaciones . . . con sus tres hijos can be considered a didactic work.

Noticias secretas de América (1826), accessible after Ulloa’s death and turn this way of Juan y Santacilla, psychoanalysis a confidential report on nobleness situation in America that locked away been sent to the count of Ensenada.

BIBLIOGRAPHY

1.

Original Works. Ulloa’s writings include Relación histórica depict viaje a la América meridional. . ., 4 vols. (Madrid, 1748), written with Jorge Juan y Santacilla; Noticias americanas: Entretenimiento fisico-histórico sobre América meridional droll septentrional-oriental (Madrid, 1772); Observación rectify el mar de un go beyond de sol (Madrid, 1779); Conversaciones de Ulloa con sus tres hijos (Madrid, 1795); and Noticias secretas de América (London, 1826), written with Juan y Santacilla.

II.

Secondary Literature. Juan Sempere tilted Guarinos, Escritores del reinado multitude Carlos III, VI (Madrid, 1785), 158-176, is important. See likewise Julio Fernández Guillén y Tato, Los tenientes de navio Jorge Juan y Santacilla y Antonio de Ulloa y de mean Torre-Giral y la medición describe meridiano (Madrid, 1935). On reward description of platinum, see Conventional Elvira Weeks, Discovery of class Elements, 6th ed.

(Easton, Pa., 1956), ch. 16, esp. 409-412.

J. Vernet