Science, Technology, and Medicine: 1780-1925 (Gale) This link opens in a new windowThis archive of documents covers one of the most vibrant and creative periods in scientific research and discovery, the long nineteenth century. The modern researcher can exploit the more than 3.5 million pages of journals, books, reports, and personal documents to explore the rapid acceleration of scientific, technical, and medical knowledge, tracing the changes from the Newtonian world to that of Einstein, from the horse to the automobile, from medical treatments based on humors and bloodletting to antiseptics and epidemiology. This archive covers every aspect of nineteenth-century science: electricity and electromagnetism, mathematics and engineering, astronomy and astrophysics, color theory and the theory of natural selection, geology and mineralogy, chemistry and medicine. This period was also considered the last great age of discovery, as explorers charted the interiors of the Americas, Asia, Africa, Australia, and the Arctic and Antarctic regions. The documents collected represent the most theoretical pursuits as well as practical applications and popular science. In Nineteenth Century Collections Online (NCCO).