He further became member of the Institute in 1812, examiner at the military school at St Cyr in 1815, leaving examiner at the Ecole Polytechnique in 1816, councillor of the university in 1820, and geometer to the Bureau des Longitudes in succession to P. S.
Die Geometer vor Euklides (Leipzig, 1870); H.
Secondly, his theory of inference contains the admission that we infer beyond sensations: he remarks that the space of the geometer is beyond space-sensations, and the time of the physicist does not coincide with time-sensations, because it uses measurements such as the rotation of the earth and the vibrations of the pendulum.
PAPPUS OF ALEXANDRIA, Greek geometer, flourished about the end of the 3rd century A.D.
APOLLONIUS OF PERGA [PERGAEUS], Greek geometer of the Alexandrian school, was probably born some twenty-five years later than Archimedes, i.e.