1810&amp
Ferdinand Barbedienne was a French metalworker and manufacturer, who was well known as a bronze founder.
Ferdinand Barbedienne was a French metalworker and manufacturer, who was well known as a bronze founder.
Alfred Jacob Miller was an American artist best known for his paintings of trappers and Native Americans in the fur trade of the western United States. He also painted numerous portraits and genre paintings in and around Baltimore during the mid-nineteenth century.
John Francis Rigaud was an English painter of French origin.
He studied painting in Italy and later became an academician at the Royal Academy of Arts in London. Rigo was a decorator and painted portraits and paintings on historical, mythological, religious themes and allegories.
Paul Jerrard was a British artist, illustrator, cartographer and publisher.
His publishing house, Jerrard & Son, Paul & Son, produced Shakespearean paintings, ornithological, entomological and botanical publications, species, sheet music, gift books, almanacs etc.
![[MARCHAND, Etienne (1755-1793)] and FLEURIEU, Charles Pierre Claret de (1738-1810).](/assets/image/picture_3615476/948e9/5adab94693e4ae36441ca19ea802e8991702422000jpg__fix_374_244.jpeg)
![[MARCHAND, Etienne (1755-1793)] and FLEURIEU, Charles Pierre Claret de (1738-1810).](https://veryimportantlot.com/assets/image/picture_3615476/948e9/5adab94693e4ae36441ca19ea802e8991702422000jpg__fix_374_244.jpeg)
Alfred Jacob Miller was an American artist best known for his paintings of trappers and Native Americans in the fur trade of the western United States. He also painted numerous portraits and genre paintings in and around Baltimore during the mid-nineteenth century.
 Констан Тройон. Неизвестный автор. Дагерротип «Констан Тройон», 1856.jpg)
Constant Troyon was a French painter of the Barbizon school. In the early part of his career he painted mostly landscapes. It was only comparatively late in life that Troyon found his métier as a painter of animals, and achieved international recognition.
Theodor Schwann was a German cytologist, histologist and physiologist, author of the cell theory.
Schwann's most significant contribution to biology is considered to be the extension of cell theory to animals. Schwann extended Schleiden's theory of the cell as the basic unit of the plant world to animals. In 1839 Schwann published his seminal work on the general theory of the cell as the basis of life, Mikroskopische Untersuchungen ber die Uebereinstimmung in der Struktur und dem Wachsthum der Thiere und Pflanzen ("Microscopic Investigations on the correspondence in the structure and growth of animals and plants"). Schwann's theory can thus be regarded as the progenitor of the school of mechanistic materialism in biology.
Schwann also studied the formation of yeast spores and concluded that the fermentation of sugar and starch was the result of life processes. He also introduced the term metabolism to describe the chemical changes that occur in living tissues, defined the role of microorganisms in putrefaction, and formulated the basic principles of embryology, noting that an egg is a single cell that eventually develops into a complete organism.
