18 résultats pour "spécimens"
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Museum.
History museums are dedicated to promoting a greater appreciation and knowledge of history and its importance to understanding the present and anticipating thefuture. They range from historic sites and small historic house museums to large, encyclopedic institutions such as the Smithsonian’s National Museum of AmericanHistory in Washington, D.C. Many cities and states have historical societies that operate museums or historic sites. History museums usually collect a wide range ofobjects, includi...
- CV et Lettre de motivation : demande d'autorisation d'importation de spécimens d'espèces végétales protégées.
- CV et Lettre de motivation : demande d'autorisation de transport de spécimens d'espèces animales protégées.
- SPECIMEN BECHERIANUM Georg Ernst Stahl (Résumé et analyse)
- CV et Lettre de motivation : demande d'autorisation d'exposition de spécimens naturalisés d'espèces animales non domestiques.
- CV et Lettre de motivation : demande d'autorisation de capture ou d'enlèvement à des fins scientifiques de spécimens d'espèces animales protégées.
- CV et Lettre de motivation : demande d'autorisation d'arrachage, de cueillette ou d'enlèvement à des fins scientifiques de spécimens d'espèces végétales protégées.
- On ne peut se dispenser d'exercer autant de pression qu'il est nécessaire pour empêcher les spécimens les plus vigoureux de la nature humaine d'empiéter sur les droits des autres ; mais à cela, on trouve ample compensation, même du point de vue du développement humain.
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L'analyse physico-chimique
électrodes : une électrode de référence (potentiel constant) et une électrode indicatrice (poten tiel variable suivan t la solution). Les autres méthodes On dénombre un certains nombres d'autres procédés exploitant les caractéristiques électriques des solutions et des matériaux : l'ampérométrie, la coulométrie, la conductimétrie, la polarimétrie ... L'électrophorèse !:électrophorèse permet de séparer des molécules chargées sous l'effet d'un champ él...
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Smithsonian Institution.
F Arthur M. Sackler Gallery The Arthur M. Sackler Gallery houses a permanent collection of art from China, South and Southeast Asia, ancient and Islamic Iran, and Japan. Changing exhibitions ofAsian art are drawn from collections in the United States and abroad. The core of the collection was a gift from American research physician and medical publisherArthur M. Sackler. G Cooper-Hewitt, National Design Museum The Cooper-Hewitt is located in New York City and features examples of historical an...
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Lewis and Clark Expedition.
took a small detachment into present-day north central Montana, thinking that the course of the Marias River might provide an American claim to fur-rich country inwhat is now the Canadian province of Alberta. In August the groups reunited on the Missouri River, near the mouth of the Yellowstone. They arrived in St. Louis onSeptember 23, 1806. C Relations with the Native Americans and Spanish The Lewis and Clark Expedition made a journey through the homelands of native people. What American expl...
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Lewis and Clark Expedition - explorer.
took a small detachment into present-day north central Montana, thinking that the course of the Marias River might provide an American claim to fur-rich country inwhat is now the Canadian province of Alberta. In August the groups reunited on the Missouri River, near the mouth of the Yellowstone. They arrived in St. Louis onSeptember 23, 1806. C Relations with the Native Americans and Spanish The Lewis and Clark Expedition made a journey through the homelands of native people. What American expl...
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Coins and Coin Collecting.
U.S. coins dates from 1909, when the first Lincoln Cents appeared during the centennial of Abraham Lincoln’s birth. George Washington’s profile was used on thequarter-dollar of 1932, a coin originally intended as a one-year commemorative to honor the 200th anniversary of his birth. The design quickly became so popular thatit was retained for regular-issue quarters and is still being used today. Thomas Jefferson, Franklin D. Roosevelt, John F. Kennedy, and Dwight D. Eisenhower are theother Americ...
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LES CONIFÈRES
Les conifères toxiqu es, les arilles de belle couleur rouge n'incom modent pas les oiseaux qui les mangent et dissé minent ainsi les graines dans la nature. Les cycas Les cycas constituent un groupe primitif au sein des gymnospermes. Leur silhouette rappelle plu tôt celle des palmiers, et ils sont fréquemment pris pour des fougères arborescentes. Ce sont généra lement de petits arbres (rarement plus de lOm de haut) dont le tronc bien droit est couro...
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LES ANIMAUX
2 capturée 152 ans auparavant aux Seychelles. Elle était devenue aveugle 10 ans avant de mourir. Le serpent le plus long. Le python réticulé ( Python reticulatus ), qui vit dans le Sud-Est de l'Asie, en Indonésie et aux Philippines, dépasse souvent 6 m de longueur. Un exemplaire, tué à Célèbes en 1912, ne mesurait pas moins de 10 m. L'oiseau le plus grand. Le plus grand oiseau vivant est sans aucun doute l'autruche ( Struthio camelus ). Une femelle de cette espèce peut atteindre 2,7 m de hau...
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Captain James Cook.
After leaving Tahiti, the expedition headed north into uncharted territory. After becoming the first Europeans to sight the Hawaiian Islands (which Cook named theSandwich Islands) in 1778, they sailed along the west coast of Canada and Alaska. Twice Cook explored inlets that offered some promise of a Northwest Passage, but tono avail. After sailing through the Bering Strait into the Arctic Sea and briefly scouting the Asian side of the strait, Cook decided to winter in the Hawaiian Islands. Hein...
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Captain James Cook - explorer.
After leaving Tahiti, the expedition headed north into uncharted territory. After becoming the first Europeans to sight the Hawaiian Islands (which Cook named theSandwich Islands) in 1778, they sailed along the west coast of Canada and Alaska. Twice Cook explored inlets that offered some promise of a Northwest Passage, but tono avail. After sailing through the Bering Strait into the Arctic Sea and briefly scouting the Asian side of the strait, Cook decided to winter in the Hawaiian Islands. Hein...
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Neandertals.
Neandertals made stone tools by striking flakes from rock “cores.” The cores were carefully selected and prepared so that only a single blow was normally required todetach a flake. A number of relatively standardized flakes were sometimes produced from a single core. These sharp flakes served as “blanks” that were further workedand shaped into the desired tools. Suitable stone was sometimes rare, and often tools were sharpened and resharpened to make new tools, yielding a whole variety ofshapes...