PREFACE.

I Now offer to the public another portion of the labours devolved on me in the execution of the duties of the Dane Professorship of Law in Harvard University. The importance of the subject will hardly be doubted by any persons, who have been accustomed to deep reflection upon the nature and value of the Constitution of the United States. I can only regret, that it has not fallen into abler hands, with more leisure to prepare, and more various knowledge to bring to such a task.

Imperfect, however, as these Commentaries may seem to those, who are accustomed to demand a perfect finish in all elementary works, they have been attended with a degree of uninviting labour, and dry research, of which it is scarcely possible for the general reader to form any adequate estimate. Many of the materials lay loose and scattered; and were to be gathered up among pamphlets and discussions of a temporary character; among obscure private and public documents; and from collections, which required an exhausting diligence to master their contents, or to select from unimportant masses, a few facts, or a solitary argument. Indeed, it required no small labour, even after these sources were explored, to bring together the irregular fragments, and to form them into groups, in which they might illustrate and support each other. From two great sources, however, I have drawn by far the greatest part of my most valuable materials. These are, The Federalist, an incomparable commentary of three of the greatest statesmen of their age; and the extraordinary Judgments of Mr. Chief Justice Marshall upon constitutional law. The former have discussed the structure and organization of the national government, in all its departments, with admirable fulness and force. The latter has expounded the application and