Kindergarten Guide. Kraus-Boelte. 81-113.
Koehler's Kindergarten Practice. Tr. by Mary Gurney. 25-31.
Froebel and Education by Self-Activity. H. Courthope Bowen. 142, 143.
Pedagogics of the Kindergarten. Fr. Froebel. 201-236.
Art and the Formation of Taste. Walter Crane. 152, 197-242.
Seven Lamps of Architecture. John Ruskin.
The Kindergarten. H. Goldammer. 85-104, 111-116.
Kindergarten Toys. H. Hoffmann. 31-36.