12 PREFACE 



In his view, if a book is to have any chance of 

 being a success it must be one of three things — 

 interesting, instructive or amusing. If you can 

 command all three, success is assured. It must 

 be left to readers, after being caught, to decide if 

 my book can claim to possess any of these qualities. 

 Though it is customary to make apologies for 

 writing, I don't see that in my case any apology 

 is required, as I certainly have never aspired or 

 pretended to be a professional writer. 



The Author. 



