Several books have been written on the crash itself but non before has dealt with events leading up to it. The era of the 1920s was one of economic growth, and not merely tinsel and ballyhoo. For most of the period, stock market prices were not unreasonably high and investment capitalism matured and took on its present-day power. It was Wall Street's silver age. It was also and age of time purchases and of buying stocks on margin; an age when both...