6 PREFACE 



compact way. Then, for the benefit of those who desire to study 

 each specific subject, I have treated them separately under their 

 respective heads. By this method, each article is more complete 

 and if read separately from other articles, the most necessary 

 information on that and kindred subjects will be obtained. 



The reader will find kindred subjects grouped in the Table 

 of Contents under sub-heads which will furnish a ready reference 

 to all subjects contained herein. 



E. H. EGGLESTON. 

 Chicago, Illinois. 



June 1, 1921. 



