The present volume deals with various practical problems in economics, as a volume published a year earlier dealt with the broader economic principles of value and distribution. To the student beginning economics and to the general reader the study of principles is likely to appear more difficult than does that of concrete questions. In fact, the difficulty of the latter, tho less obvious, is equally great. The study of principles makes demands upon thought that are open and unmistakable; its conclusions, drawn in the cold light of reason, are uncolored by feeling, and are acceptable of all men so long as the precise application that may justly be made.