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 
und 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. 
