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缩微胶卷作为无法查阅手稿原件的利用者利用这些材料的一种媒介,在整个三十年代得以使用。最早进行的缩微工作是威斯康辛历史协会在1939年对莱曼C·德雷帕文件的拍摄,但实际拍摄工作却始于1940年1月,联邦政府对开展这项工作予以有力的支持。1940年初,国家档案馆缩微了包括大陆会议文件在内的数百万页联邦政府文件,1957年,美国历任总统的文件由国会图书馆拍摄完毕。 但要人们接受缩微胶卷出版物的观念,还有待于全国历史出版物委员会的努力。在1934年成立国家档案馆的法令中就已规定设置的全国历史出版物委员会。起初,它参与了印刷出版历史上杰出人物一部分文件的工作。国会在委员会的强烈要求下于1964年投票通过了一项拨款案,以支持实施缩
Microfilms were used throughout the 1930s as a medium for users who could not access the originals of the manuscripts using these materials. Earliest microfilming was the Wisconsin Historical Society’s filming of the Lehman C. Draepa document in 1939, but the actual filming began in January 1940 and the federal government strongly supported this effort. In early 1940, the National Archives miniaturized the millions of pages of federal government documents, including documents for the mainland conventions. In 1957, the files of the United States presidential presidents were shot by the Library of Congress. But getting people to accept the concept of microfilm publications remains to be seen in the efforts of the National Council of Historical Publications. In 1934 the establishment of the National Archives Act has been provided for the establishment of the National Council of Historical Publications. At first, it was involved in the printing of documents that were part of a prominent figure in the history of publishing. At the intense request of the Commission, Congress voted in 1964 to approve a grant