Note 486 — Chapter II · The Lutheran Hymn-Book—The Book of Arithmetic—The Geometrical Instruments—The Mosaic Pavement—The Lute—The Seven Liberal Arts—The Silver Crucifix—Occult Science—Conclusion
Reading edition
Hagen, “Deutschlands literarische und religiöse Verhältnisse im Reformations-Zeitalter,” vol. i., chap. vi.