Between 1875 and 1900, the assets of trust companies in New York City grew at a compound annual rate of 9.6%, compared with 4.1% for national banks. The purpose of this book, first published in 1986, is to bring to light the entrepreneurial, economic and political forces which prompted the growth of the trust companies and resolved the movement into a well-defined financial intermediary and eventually led to the merging of the trust movement with commercial banks.