It is an encouraging sign of advancing culture that history is gaining a deeper and broader meaning. We are really becoming interested, not merely in our political, but also in our entire biological, psychological, and social evolution. Although such phrase-making is nearly always misleading, there would perhaps be more truth in saying that "history is past sociology and sociology present history" than in Freeman's well-known epigram. In particular, the human family, with all that the word connotes, is commanding greater attention. Yet there is urgent need that its rise and social function should have far more earnest study than they now receive. The family and its cognate institutions ought to enter more fully into popular thought; and they should have much larger relative space in the educational program. From the home circle to the university seminar they are worthy to become a vital part of systematic social training. In the hope of aiding somewhat in winning for them due scientific recognition, this book is written. It seems not impossible that a sustained history of the matrimonial institutions of the English race in its "three homes" may prove a positive advantage, especially in gathering the materials and planning the work for more detailed investigations. Moreover, a thorough understanding of the social evolution of any people must rest upon the broader experience of mankind. Accordingly, in Part I the attempt is made to present a comprehensive and systematic analysis of the literature and the theories of primitive matrimonial institutions.

Preliminary reference to another portion of the book may perhaps be permitted. The anxious attention of the legal and social reformer is being especially directed to the character of our state legislation regarding marriage and divorce. To him, therefore, it is hoped, the last three chapters may prove helpful. Summaries of the statutes as they stood at particular dates have indeed appeared. The digest contained in the government Report is of great value for the time of its compilation; but no attempt seems ever to have been made to provide a systematic historical record. In these chapters—the result of several years' labor—the laws of all the states and territories enacted since the Revolution have been analyzed with some regard for details. No pains have been spared to gain accuracy; yet it would be rash to expect that the discussion is entirely free from error or oversight.

During the years devoted to this investigation I have profited by the generous assistance of many friends. They have aided me through references, information, copying, verifying, and in other ways. To all these I desire to convey my grateful thanks. In a few instances it is fitting that individual acknowledgment should be made. To Professor William Henry Hudson, of London, I am indebted for the examination of several rare books in the library of the British Museum. Bibliographical help has also been given by Professor Charles Richmond Henderson, of the University of Chicago. Special researches on my behalf have been conducted by Mr. Royall C. Victor and by Miss Lucile Eaves, head resident of the South Park Settlement, San Francisco. I have had the advantage of the expert aid of Mr. David M. Matteson in examining the manuscript records of the colonial and provincial courts of Suffolk and Middlesex counties, Massachusetts. To Professor Nathan Abbott, of Stanford University, Mr. James H. Deering, of the San Francisco Law Library, and Rev. Samuel W. Dike, secretary of the National League for the Protection of the Family, I am under obligations for information and suggestions. Special thanks are due to Professor Charles Gross, of Harvard, for encouragement in the work and various kind offices; as also to Mr. W. C. Lane and Mr. T. J. Kiernan, of the Harvard Library, for granting the most liberal use of the materials in their charge.

Finally I can but poorly express the gratitude which I owe to my wife, whose patient hand, faithful criticism, and wise counsel have never failed.

Chicago, March 19, 1904.