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By the 1920s, logging had stripped the mountain of its hardwood vegetation, permanently altering its native environment.
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By and 1920s
By the 1920s, each state in the United States had passed public laws that stipulated a certain day to be Arbor Day or Arbor and Bird Day observance.
By the late 1920s Potter and her Hill Top farm manager Tom Storey had made a name for their prize-winning Herdwick flock.
By the 1920s, composers of Tin Pan Alley and Broadway used ballad to signify a slow, sentimental tune or love song, often written in a fairly standardized form ( see below ).
By the late 1920s, New York writers other than Fitz Gerald were starting to use " Big Apple " and were using it outside of a horse-racing context.
By the 1920s, the emerging middle and working classes were powerful enough to elect a reformist president, Arturo Alessandri Palma.
By the 1920s, many newspapers had a comics page on which many strips were collected together.
Additional milieu were provided by Chaosium with the release of Dreamlands, a boxed supplement containing additional rules needed for playing within the Lovecraft Dreamlands, a large map and a scenario booklet, and Cthulhu By Gaslight, another boxed set which moved the action from the 1920s to the 1890s.
By the early 1920s, unit operations became an important aspect of chemical engineering at MIT and other US universities, as well as at Imperial College London.
By the late 1920s, Al Capone and the Mob were inspiring not only fear, but piquing mainstream curiosity about the American underworld.
By the 1920s, the U. S. reached what is still its era of greatest-ever output, producing an average of 800 feature films annually, or 82 % of the global total ( Eyman, 1997 ).
By the 1920s Lewis Fry Richardson's interest in weather prediction led him to propose human computers and numerical analysis to model the weather ; to this day, the most powerful computers on Earth are needed to adequately model its weather using the Navier – Stokes equations.
By the 1920s, the idea of an Israelite conquest of Canaan-the story of the book of Joshua-was not supported by the archaeological record.
By the 1920s, Hearst, was the owner of a chain of newspapers from coast to coast.
By the 1920s, the diatonic harmonica had largely reached its modern form.
By the 1920s however the Senate had lost much of its original influence, and hence no sitting senator had been known to have serious aspirations of becoming prime minister whilst remaining in the Senate.
By the 1920s the number of cars had soared to 60, 000.
By the early 1920s, however, the inherent limitations of this type of engine had rendered it obsolete, with the power output increasingly going into overcoming the air-resistance of the spinning engine itself.
By the 1920s psychoanalysts assumed that homosexuality was pathological and that attempts to treat it were appropriate, although psychoanalytic opinion about changing homosexuality was largely pessimistic.
By the late 1920s the resistance movement against colonial rule had gathered widespread support during the mistreatment of the Samoan people by the New Zealand administration.
By the late 1920s, however, those employing only optical and electronic technologies were being explored.
By the late 1920s, economic performance had stabilised, but the overall situation was disappointing, for Britain had clearly fallen behind the United States and other countries as an industrial power.
By the 1920s, however, this boisterous folksiness had diminished.
By the end of the 1920s Corbusier was already an internationally known architect.
By the 1920s, the British Government were seeking a replacement for their book code systems, which had been shown to be insecure, and which proved to be slow and awkward to use in practice.
" By the 1920s, Birmingham was the 19th largest city in the U. S and held more than 30 % of the population of the state.
By and logging
By 1938, an estimated 20 individuals remained in the wild, some 6-8 of which were located in the old-growth forest called the Singer Tract in Louisiana, where logging rights were held by the Chicago Mill and Lumber Company.
By the end of the 19th century there was scarcely any part of Central America within reach of the coast untouched by logging, and activity also extended into Colombia, Venezuela, Peru and Brazil.
By 1940, the business was undergoing major changes, as access roads and automobiles ended residential logging camps, chain saws replaced crosscut saws, and managers installed modern industrial methods.
By the end of the century, stimulated by the construction of several sawmills, the area was a significant center for agriculture, logging, and manufacturing furniture.
By this time, industry in Houma consisted largely of plantations for sugar cane, the harvesting of seafood, fur trading and logging industries.
By the turn of the century, heavy logging in the area had caused significant deforestation which resulted in dramatic erosion problems.
By the 1930s the big white and red pines were gone and pine trees were essentially locally extirpated due to the unsustainable logging practices of the time, and farming gained importance.
By 1860 economic activity in the area was based on dairy farms along Hooper and Farm-to-Market Roads, second-growth logging, and the railroad depot.
By 1948, the company built a large sawmill in Oakridge and had began a massive timber logging operation.
By the late 19th century Essex County had seen fur trading and logging, land clearing and farming, road building and railway development, saw mills and gristmills, railway stations and water ports.
By the 1880s, logging companies were damming the river to ensure the river had enough capacity for the logs being floated downstream.
By the conclusion of these sessions, she was logging on and became an activist for the cause of encouraging elders to use the Internet.
By the late 19th century, clear-cutting logging practices had stripped much of the mountain for local industries that produced wood products, paper and charcoal.
By 1926, the Superior Roadless Area had been designated by the U. S. Forest Service, offering some protection from mining, logging, and hydroelectric projects, although logging would not cease completely until 1979.
By the turn of the 21st century, although Comox Valley contained half of the agricultural land on Vancouver Island, jobs were moving away from other resource-based industries such as fishing and logging.
By now, the issue had grown beyond the mere procurement of an annual quota of three ash trees, and encompassed a growing concern over commercial logging and the government's forest policy, which the villagers saw as unfavourable towards them.
By the time the models entered production, Renault had assigned more than 500 people to the project, logging 14, 500, 000 hours of study and testing, constructing 44 prototypes, testing 130 engines, and test-driving prototypes more than 2. 2 million km.
By 1970 a paved Highway was built over most of the logging road.
By the mid-1970s, Evans had settled in the Kootenay region of southern British Columbia, and became active in local environmental and land use initiatives, particularly in developing the Slocan Valley Forest Management Project, which aimed to control logging and protect watersheds.
By using two cables set up like a clothes line, the rigging can be pulled out and logs can be pulled across a logging setting where the trees have been previously felled.
By the early 1970s with Harold Owen going in the direction of explosive manufacturing, Marvin Gearhart had decided that he wanted to crack the lucrative open-hole logging market that was dominated by Schlumberger, Dresser-Atlas, and Welex.
By the beginning of the twentieth century, logging in Wisconsin had gone into decline.
By covering floating substrates like woodchips with epoxy adhesives, water logging can be prevented and TiO < sub > 2 </ sub > particles can stick to the substrates.
By the 1980s logging of East Gippsland native forests had become an environmental issue.
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