If I had not taken so much time in my other illustrations, I should like to show how, beginning with very simple material things, the children were led on to larger fields of investigation, and to the intellectual discipline that is the accompaniment of such research. I will simply mention the experiment in which the work began. It consisted in making precipitated chalk, used for polishing metals. The children, with simple apparatus—a tumbler, lime water, and a glass tube—precipitated the calcium carbonate out of the water; and from this beginning went on to a study of the processes by which rocks of various sorts, igneous, sedimentary, etc., had been formed on the surface of the earth and the places they occupy; then to points in the geography of the United States, Hawaii, and Puerto Rico; to the effects of these various bodies of rock, in their various configurations, upon the human occupations; so that this geological record finally rounded itself out into the life of man at the present time. The children saw and felt the connection between these geologic processes taking place ages and ages ago, and the physical conditions determining the industrial occupations of today.
Of all the possibilities involved in the subject, "The School and the Life of the Child," I have selected but one, because I have found that that
