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Logwood Tree
''Haematoxylum campechianum'' (blackwood, bloodwood tree, bluewood, campeachy tree, campeachy wood, campeche logwood, campeche wood, Jamaica wood, logwood or logwood tree) is a species of flowering tree in the legume family, Fabaceae, that is native to southern Mexico,where it is known as ''Árbol de campeche'', and introduced to the Caribbean, northern Central America, and other localities around the world. The tree was of great economic importance from the 17th century to the 19th century, when it was commonly logged and exported to Europe for use in dyeing fabrics. The modern nation of Belize developed from 17th- and 18th-century logging camps established by the English. The tree's scientific name means "bloodwood" (''haima'' being Greek for blood and ''xylon'' for wood). Uses ''Haematoxylum campechianum'' was used for a long time as a natural source of dye. The woodchips are still used as an important source of haematoxylin, which is used in histology for staining. The bar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xylosma
''Xylosma'' is a genus of flowering plants in the family Salicaceae. It contains around 100 species of evergreen shrubs and trees commonly known as brushhollies, xylosmas, or, more ambiguously, " logwoods". The generic name is derived from the Greek words ξύλον (''xylon''), meaning "wood," and ὀσμή (''osmé''), meaning "smell," referring to the fragrant wood of some of the species. The Takhtajan system places it in the family Flacourtiaceae, which is considered defunct by the Angiosperm Phylogeny Group. Description The leaves are alternate, simple, entire or finely toothed, long. The flowers are small, yellowish, produced on racemes long, usually dioecious, and have a strong scent. The fruit is a small purple-black berry in diameter that contains 2 to 8 seeds. Range The genus is predominantly native to the tropics and subtropics, from the Caribbean, Central America, northern South America, the Pacific Islands, southern Asia and northern Australasia. Two spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Staining
Staining is a technique used to enhance contrast in samples, generally at the microscopic level. Stains and dyes are frequently used in histology (microscopic study of biological tissues), in cytology (microscopic study of cells), and in the medical fields of histopathology, hematology, and cytopathology that focus on the study and diagnoses of diseases at the microscopic level. Stains may be used to define biological tissues (highlighting, for example, muscle fibers or connective tissue), cell populations (classifying different blood cells), or organelles within individual cells. In biochemistry, it involves adding a class-specific ( DNA, proteins, lipids, carbohydrates) dye to a substrate to qualify or quantify the presence of a specific compound. Staining and fluorescent tagging can serve similar purposes. Biological staining is also used to mark cells in flow cytometry, and to flag proteins or nucleic acids in gel electrophoresis. Light microscopes are used for viewin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edmund Cooke (pirate)
Edmund Cooke ( fl. 1673–1683, also named Edward / Edmond or Cook) was a merchant captain, buccaneer, and pirate. He is best known for sailing against the Spanish alongside Bartholomew Sharp, John Coxon, Basil Ringrose, Lionel Wafer, and other famous buccaneers. Cooke's flag was red-and-yellow striped and featured a hand holding a sword. Career Merchant Cooke's 130-ton merchant vessel ''Virgin'' was bound to Jamaica from London when Irish pirate Philip Fitzgerald, who was serving the Spanish in the Caribbean, seized it in May 1673. Fitzgerald accused Cooke of transporting logwood – which the Spanish considered contraband – and took the ''Virgin'' to Havana for condemnation as a prize ship. Cooke and his crew were put into a small boat with few provisions and it took them over two months to make their way back to Jamaica. For over a year he protested to Spanish officials in the Caribbean and in Europe to no avail. He also petitioned King Charles II for a privateering com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juan Corso
Juan Corso (died 1685) was a Corsican pirate and ''guarda costa'' privateer who sailed in Spanish service, operating out of Cuba. History Corso sailed alongside Spanish privateer Pedro de Castro under commander Felipe de la Barreda y Villegas in April 1680, rounding up Englishmen illegally harvesting logwood in the Laguna de Términos off Campeche, partially in retaliation for English buccaneers Edward Neville and George Spurre's 1678 sack of Campeche. They sailed the Yucatan coast and took a number of ships, one of which had earlier been captured from the Spanish by English buccaneer John Coxon. Corso was known for his savagery: “The Spaniards killed two men and cruelly treated the deponent, hanging him up at the fore braces several times, beating him with their cutlasses, and striking him in the face after an inhuman cruel manner.” And later: “This Juan a month since took a boat of ours bound to New Providence; he has killed divers of our people in cold blood. In one c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southern subregion of a single continent called America. South America is bordered on the west by the Pacific Ocean and on the north and east by the Atlantic Ocean; North America and the Caribbean Sea lie to the northwest. The continent generally includes twelve sovereign states: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, and Venezuela; two dependent territories: the Falkland Islands and South Georgia and the South Sandwich Islands; and one internal territory: French Guiana. In addition, the ABC islands of the Kingdom of the Netherlands, Ascension Island (dependency of Saint Helena, Ascension and Tristan da Cunha, a British Overseas Territory), Bouvet Island ( dependency of Norway), Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Golden Age Of Piracy
The Golden Age of Piracy is a common designation for the period between the 1650s and the 1730s, when maritime piracy was a significant factor in the histories of the Caribbean, the United Kingdom, the Indian Ocean, North America, and West Africa. Histories of piracy often subdivide the Golden Age of Piracy into three periods: # The buccaneering period (approximately 1650 to 1680), characterized by Anglo-French seamen based in Jamaica and Tortuga attacking Spanish colonies, and shipping in the Caribbean and eastern Pacific. # The Pirate Round (1690s), associated with long-distance voyages from the Americas to rob Muslim and East India Company targets in the Indian Ocean and Red Sea. # The post-Spanish Succession period (1715 to 1726), when Anglo-American sailors and privateers left unemployed by the end of the War of the Spanish Succession turned en masse to piracy in the Caribbean, the Indian Ocean, the North American eastern seaboard, and the West African coast. Narrower defi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buccaneers
Buccaneers were a kind of privateers or free sailors particular to the Caribbean Sea during the 17th and 18th centuries. First established on northern Hispaniola as early as 1625, their heyday was from the Restoration in 1660 until about 1688, during a time when governments were not strong enough and did not consistently attempt to suppress them. Originally the name applied to the landless hunters of wild boars and cattle in the largely uninhabited areas of Tortuga and Hispaniola. The meat they caught was smoked over a slow fire in little huts the French called ''boucans'' to make ''viande boucanée'' – ''jerked meat'' or ''jerky'' – which they sold to the corsairs who preyed on the (largely Spanish) shipping and settlements of the Caribbean. Eventually the term was applied to the corsairs and (later) privateers themselves, also known as the Brethren of the Coast. Though corsairs, also known as ''filibusters'' or ''freebooters'', were largely lawless, privateers were nomi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haematoxylum Campechianum Wood Chips
''Haematoxylum'' is a genus of flowering plants in the legume family, Fabaceae, subfamily Caesalpinioideae and the tribe Caesalpinieae. Species ''Haematoxylum'' comprises the following species: * ''Haematoxylum brasiletto'' H.Karst.—Palo Brasil, Brazilette, Peachwood (Mexico, Central America, Colombia) * '' Haematoxylum calakmulense'' Cruz Durán & M. Sousa * ''Haematoxylum campechianum ''Haematoxylum campechianum'' (blackwood, bloodwood tree, bluewood, campeachy tree, campeachy wood, campeche logwood, campeche wood, Jamaica wood, logwood or logwood tree) is a species of flowering tree in the legume family, Fabaceae, that is ...'' L.—Logwood (Southern Mexico, Northern Central America) * '' Haematoxylum dinteri'' Harms * '' Haematoxylum sousanum'' Cruz Durán & J. Jiménez Ram. References External links Caesalpinieae Fabaceae genera {{Caesalpinioideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammonia
Ammonia is an inorganic compound of nitrogen and hydrogen with the formula . A stable binary hydride, and the simplest pnictogen hydride, ammonia is a colourless gas with a distinct pungent smell. Biologically, it is a common nitrogenous waste, particularly among aquatic organisms, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to 45% of the world's food and fertilizers. Around 70% of ammonia is used to make fertilisers in various forms and composition, such as urea and Diammonium phosphate. Ammonia in pure form is also applied directly into the soil. Ammonia, either directly or indirectly, is also a building block for the synthesis of many pharmaceutical products and is used in many commercial cleaning products. It is mainly collected by downward displacement of both air and water. Although common in nature—both terrestrially and in the outer planets of the Solar System—and in wide use, ammonia is both caust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PH Indicator
A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH (acidity or basicity) of the solution can be determined visually or spectroscopically by changes in absorption and/or emission properties. Hence, a pH indicator is a chemical detector for hydronium ions (H3O+) or hydrogen ions (H+) in the Arrhenius model. Normally, the indicator causes the color of the solution to change depending on the pH. Indicators can also show change in other physical properties; for example, olfactory indicators show change in their odor. The pH value of a neutral solution is 7.0 at 25°C ( standard laboratory conditions). Solutions with a pH value below 7.0 are considered acidic and solutions with pH value above 7.0 are basic. Since most naturally occurring organic compounds are weak electrolytes, such as carboxylic acids and amines, pH indicators find many applications in biology and analytical chemistry. Moreover, pH indicators form one of the three main ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Texas At Austin
The University of Texas at Austin (UT Austin, UT, or Texas) is a public research university in Austin, Texas. It was founded in 1883 and is the oldest institution in the University of Texas System. With 40,916 undergraduate students, 11,075 graduate students and 3,133 teaching faculty as of Fall 2021, it is also the largest institution in the system. It is ranked among the top universities in the world by major college and university rankings, and admission to its programs is considered highly selective. UT Austin is considered one of the United States's Public Ivies. The university is a major center for academic research, with research expenditures totaling $679.8 million for fiscal year 2018. It joined the Association of American Universities in 1929. The university houses seven museums and seventeen libraries, including the LBJ Presidential Library and the Blanton Museum of Art, and operates various auxiliary research facilities, such as the J. J. Pickle Research Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paper
Paper is a thin sheet material produced by mechanically or chemically processing cellulose fibres derived from wood, rags, grasses or other vegetable sources in water, draining the water through fine mesh leaving the fibre evenly distributed on the surface, followed by pressing and drying. Although paper was originally made in single sheets by hand, almost all is now made on large machines—some making reels 10 metres wide, running at 2,000 metres per minute and up to 600,000 tonnes a year. It is a versatile material with many uses, including printing, painting, graphics, signage, design, packaging, decorating, writing, and cleaning. It may also be used as filter paper, wallpaper, book endpaper, conservation paper, laminated worktops, toilet tissue, or currency and security paper, or in a number of industrial and construction processes. The papermaking process developed in east Asia, probably China, at least as early as 105 CE, by the Han court eunuch Cai Lun, although the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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