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Over the concluding decades of the twentieth century, the historic preservation community increasingly turned its attention to modern buildings, including bungalows from the 1930s, gas stations and diners from the 1940s, and office buildings and architectural homes from the 1950s. Conservation efforts, however, were often hampered by a lack of technical information about the products used in these structures, and to fill this gap Twentieth-Century Building Materials was developed by the U.S. Department of the Interior’s National Park Service and first published in 1995. Now, this invaluable guide is being reissued—with a new preface by the book’s original editor. With more than 250 illustrations, including a full-color photographic essay, the volume remains an indispensable reference on the history and conservation of modern building materials. Thirty-seven essays written by leading experts offer insights into the history, manufacturing processes, and uses of a wide range of materials, including glass block, aluminum, plywood, linoleum, and gypsum board. Readers will also learn about how these materials perform over time and discover valuable conservation and repair techniques. Bibliographies and sources for further research complete the volume. The book is intended for a wide range of conservation professionals including architects, engineers, conservators, and material scientists engaged in the conservation of modern buildings, as well as scholars in related disciplines.
"The National Park Service is excited to commemorate the 100th year anniversary of the passage of the 19th Amendment to the U.S. Constitution that abolished sex as a basis for voting and to tell the diverse history of women's suffrage-the right to vote-more broadly. The U.S. Congress passed the 19th Amendment on June 4, 1919. The states ratified the amendment on August 18, 1920, officially recognizing women's right to vote. This handbook demonstrates the expansiveness of the stories the NPS is telling to preserve and protect women's history for this and future generations. The essays included within tell a broad history of various women advocating for their rights. Sprinkled throughout are short biographies of notable ladies who devoted their time to the women's suffrage movement along with summaries of events important to the cause"--