vi PREFACE 
few omissions to avoid unnecessary repetition. A 
certain amount of repetition will, indeed, still be 
found to exist, as somewhat similar ground is, in 
certain instances, traversed in the course of two 
separate articles. To have avoided this, would 
have entailed practically re-writing some, or the 
total omission of others ; and it was consequently 
decided to print the entire series almost as it 
stood. 
HARPENDEN LODGE, HERTS, 
April 5th, 1903. 
