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Provides a wide choice of titles (books, catalogues, etc.) devoted to cacti and other succulents.
The task of the GDZ is to record data such as prints, manuscripts and illustrations and to present them. Scientists, teachers and students will find a large amount of scholarly relevant texts in digitized form.
Charles Darwin’s Library is a digital edition and virtual reconstruction of the surviving books owned by Charles Darwin. This BHL special collection draws on original copies and surrogates from other libraries. It also provides full transcriptions of his annotations and marks.
Chronicling America is a Website providing access to information about historic newspapers and select digitized newspaper pages, and is produced by the National Digital Newspaper Program (NDNP). NDNP, a partnership between the National Endowment for the Humanities (NEH) and the Library of Congress (LC), is a long-term effort to develop an Internet-based, searchable database of U.S. newspapers with descriptive information and select digitization of historic pages. Supported by NEH, this rich digital resource will be developed and permanently maintained at the Library of Congress.
The Core Historical Literature of Agriculture (CHLA) is a core electronic collection of agricultural texts published between the early nineteenth century and the middle to late twentieth century. Full-text materials cover agricultural economics, agricultural engineering, animal science, crops and their protection, food science,forestry, human nutrition, rural sociology, and soil science. Scholars have selected the titles in this collection for their historical importance. Their evaluations and 4,500 core titles are detailed in the seven volume series The Literature of the Agricultural Sciences, Wallace C. Olsen, series editor.
The present version of the site provides extensive bibliographic information for mycological publications, most dating from the early 1800s to the 1980s,