There Is No Occupation in the Kinder Garten Which Affords so Wide a Field for the Gratification of the Imagination and the Exercise of the Artistic Faculties (1879)

Johann and Bertha Ronge, A Practical Guide to the English Kinder-Garten (Children's Garden): For the Use of Mothers, Governesses, and Infant Teachers : Being an Exposition of Froebel's System of Infant Training : Accompanied by a Variety of Instructive and Amusing Games, and Industrial and Gymnastic Exercises, Also Numerous Songs Set to Music, and Arranged for the Exercises (London: A.N. Myers & Co., 1879), 41.