The making of this book has been the part-time avocation of a man past the university retirement age, who finds twenty-four hours a day, seven days in a week, too brief a time to carry on his regular work of publishing, maintaining an advisory service for schools, and helping to solve the educational problems of over a thousand families yearly. The reading and the research have been done chiefly when honest men were in bed and others in night clubs. The compilation was dictated in snatches in intervals of a busy day, fitted to the limits of a stencil and mailed out still moist.
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