sources and the only credit claimed is for put- 

 ting them together in a concise and consecutive 

 form. The object aimed at is to give informa- 

 tion. Whether the custom of tobacco smoking 

 is desirable, whether in any individual case it 

 would be beneficial or otherwise to smoke these 

 and similar questions are left to the reader's 

 own judgment from the facts and opinions pre- 

 sented, as well as from his own observations. 

 The man who uses tobacco daily should know 

 what he is doing. If statements are made either 

 verbally or in print concerning the custom he 

 should be able to verify them or show that they 

 are incorrect. It is trusted that the informa- 

 tion given in these pages will enable him to 

 form a clear judgment whatever the judgment 

 may be. 



It may be felt that many aspects of the use 

 of tobacco and matters connected with it have 

 either not been touched on, or only referred to 

 very briefly. The reader who may desire fur- 

 ther information will find it in the bibliographi- 

 cal references given throughout the book. These 

 references have generally been consulted by 

 the author and his indebtedness is acknowl- 

 edged here. 



