Kindergarten at Home. _Emily Shirreff_. Pages 58-61.
Kindergarten Culture. _W. N. Hailmann_. 66.
Koehler's Kindergarten Practice. Tr. by _Mary Gurney_. 23, 24.
Kindergarten Guide. _J_. and _B. Ronge_. 13-24.
Pedagogics of the Kindergarten. _Fr. Froebel_. 166-95.
Paradise of Childhood. _Edward Wiebe_. 17-19.
Kindergarten Guide. _Kraus-Boelte_. 47-81.
Froebel and Education by Self-Activity. _H. Courthope Bowen_.
141, 142.
Kindergarten Toys. _H. Hoffmann_. 27-30.