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Description
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This work contains two texts. The first is a treatise on the planispheric astrolabe of Robert of Chester, who may or may not be the same person as Robert of Ketton, who wrote a number of scientific treatises and translated Arabic works, such as al-Khwarizmi's Algebra, made whilste he was in Segovia in 1145. He also wrote an original treatise on the construction of the universal astrolabe, in London in 1147. The second text is a treatise on surveying, illustrated with sixty-two woodcut diagrams, showing techniques for the measurement of altitudes (including using an astrolabe), angles and distances., Partis secunde huius De mensurationibus reru[m] tractatulus, Signatures: a-c⁸, d⁶, 36, 37 lines to a page., Publication place, name of publisher and publication date taken from the ISTC., Initial letters in woodcuts and sixty-two woodcut diagrams, Marginal handwriten remarks, Main Heritage Display General, QB41 .R63 1497, Book, Item-ID: i21509256, BIB-ID: 1950494 |
