334 PHYSICAL SCIENCE IN THE MIDDLE AGES. 



abbot of St. Victor, made a contemplative life the 

 main point and crown of his philosophy; and is 

 said to have been the first of the scholastic writers 

 who made psychology his special study 11 . He says 

 the faculties of the mind are "the senses, the 

 imagination, the reason, the memory, the under- 

 standing, and the intelligence." 



Physics does not originally and properly form 

 any prominent part of the Scholastic Philosophy, 

 which consists mainly of a series of questions and 

 determinations upon the various points of a certain 

 technical divinity. Of this kind is the Book of 

 Sentences of Peter the Lombard (bishop of Paris), 

 who is, on that account, usually called "Magister 

 Sententiarum ;" a work which was published in the 

 twelfth century, and was long the text and standard 

 of such discussions. The questions are decided by 

 the authority of Scripture and of the Fathers of the 

 Church ; and are divided into four Books, of which 

 the first contains questions concerning God and the 

 doctrine of the Trinity in particular ; the second is 

 concerning the Creation; the third, concerning 

 Christ and the Christian Religion ; and the fourth 

 treats of Religious and Moral Duties. In the second 

 Book, as in many of the writers of this time, the 

 nature of Angels is considered in detail, and the 

 Orders of their Hierarchy, of which there were held 

 to be nine. The physical discussions enter only 

 as bearing upon the scriptural history of the crea- 

 11 Deg. iv. 4J5. 



