Tobacco smoke contains large quantities of toxic chemicals .
Tobacco is a poison.
A man will die of an infusion of tobacco as of a shot through the head. The body needs food, clothing, sunshine, bathing, and drink, but none of these wants are so pressing as pure air. Other wants may be met by occasional supply, but air must be furnished every moment or we die. Doctors . . . We wish we could get the chilling implications of this knowledge across to our patients. . . .