In Chapter XII were listed, under several classifications, the financial institutions that compose the banking system of the United States. The intervening chapters have described the national and federal reserve banks. In this and the succeeding chapter will be treated the other financial institutions of the country, but not with the fulness given to the national and federal reserve banks. Many of these other institutions are largely divorced from commercial banking, which this book aims to present; many are closely concerned with the investment market, some with savings, some with personal loans, some with building homes; only indirectly do these affect commercial banking. They are, however, an essential part of our banking system and warrant proportionate treatment. State banks and trust companies are largely commercial banks, and they are very numerous and important.