Note 2639 — Chapter XXVIII · ARABIC OCCULT SCIENCE OF THE NINTH CENTURY
Reading edition
Constantinus Africanus, Opera, Basel, 1536, pp. 307-17, “Qui voluerit scire differentiam, que est inter duas res .../ ... Hec igitur de differentiis spiritus et anime tibi dicta sufficiant, valeto.” Edited more recently by S. Barach, Innsbruck, 1878, pp. 120-39.