Note 288 — Chapter II · THE CONTRIBUTION OF WESTERN CHRISTENDOM BEFORE 1100 A. D.
Reading edition
Liber de astrolabio, 19, in: Gerberti opera, Bubnov’s edit., 1899, p. 142.
Reading edition
Liber de astrolabio, 19, in: Gerberti opera, Bubnov’s edit., 1899, p. 142.