http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
essay on the genuine construction of a standard microscope and telescope
With the application of a prismatic or catadioptric eye-piece to refracting and reflecting telescopes, by which their lengths are much contracted, their fields of view encreased, and their uses greatly facilitated; particularly in the reflector of Cassegrain's form for celestial observations. By B. Martin
1 online resource (2 unnumbered pages, 14 pages)
Reproduction of original from Library of Congress.