examine trusts from the standpoint of the trust maker as well as from that of the consumer; and trade unions, from the standpoint of their members as well as from the ground of employers and of the public at large. We shall indeed meet much error by this method of study, but is it not proverbial that there are two sides to every question? It will be our task to study these opposing views and sift from them the truths for which we seek.

In taking up now the problem before us, let us adopt the true scientific method for its solution. We must first find out as fully as possible the actual facts with regard to monopolies of every sort and the competition which monopoly replaces. Next, by discussing and comparing the evidence obtained, we may be able to discover the natural laws by which competition and monopoly are controlled; and finally, with our knowledge of these, we will try to discover both the source of the evils which vex us and the proper methods for ameliorating, curing, or preventing them, whichever may be found possible.

Such is the outline of the investigation before us, which it may as well be said here could easily be extended and amplified to fill many volumes. The author has preferred to prepare the present volume without such amplification, believing that the busy men of affairs, to whom a practical knowledge of the subjects herein treated is most essential, have, as a rule, no leisure for the extended study which the volumes into which the present one might easily be expanded would require. He trusts, however, that brevity will not be found wholly incompatible with thoroughness; and that the fact that much which might have properly been included in the book is omitted, will not be taken as a necessary indication that the conclusions arrived at are without value.