Within a single generation, a new habit has laid hold upon an entire people to an extent which we do not begin to realize, and with effects which we certainly do not understand. Last year 60 million Americans consumed 400 billion cigarettes. Every year, some 800,000 non-smokers join the smoking ranks. Two out of every three men, two of of every give women, one out of every second boys of 14 smoke cigarettes. The average consumption is 19 a day. We spend some four billion dollars a year on tobacco products and supplies twice as much as we pay all the public school teachers in the United States We are, at a lively pace, engulfing ourselves in one giant nation-wide cloud of cigarette smoke. What is this substance which we breath into our mouths and lungs in such stupendous clouds? It contains a number of ominous-sounding chemicals. Medical men, however, have not proved a case against them. But two of the chemicals are under grave suspicon: benzo-pyrene, which
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