Word: wynder
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...your article "Making Cigarettes Safe" [April 22]: Has Researcher Wynder tried ethyl alcohol (possibly in the form of bourbon or Scotch) for extracting the natural waxes from the tobacco leaf? One could have a smoke and a drink all in one and eliminate the need for the hip flask...
...Wynder told the American Association for Cancer Research, meeting in Chicago, that the villain is not present in tobacco leaves in their natural, unburned state. His research team proved this by extracting tar from cigarette tobacco without burning it: the resulting substance produced virtually no cancers when painted on the backs of mice. But batches of the same tobacco were burned at varying temperatures, and the tars extracted. Tar from the lower-temperature-burning ranges (560° to 720° C.) produced few or no cancers. From 800° to 880° C. the number of cancers increased sharply. Conclusion...
Tentative Conclusion. Could the original substance from which the cancer agent is formed be pinned down and removed from the tobacco? Wynder & Co. closed in on a natural waxy substance that is known to coat the tobacco leaf. In the wax are "aliphatic hydrocarbons.'' which, burned at high temperatures, produce "polycyclic hydrocarbons," and these in turn can cause cancer...
...tobacco: in five months all mice painted with a 5% solution from tests at 880° had papillomas (precursors of cancer), and 27% had full-blown cancer. The tar from the wax contained all the cancer agents now known to exist in small amounts in cigarette tar, but Dr. Wynder doubts that these substances are the only cause of the lung-cancer increase, suspects there are others in the tar. One tentative conclusion: dewax the tobacco to make it less harmful. Dr. Wynder did not say what cigarettes would taste like if made from dewaxed tobacco. (He has tried them...
Other Possibilities. Wynder also saw hope for making the cigarette safer along several other lines. One is to reduce the temperature at which a cigarette burns, now in the 800°-880° C. range, to a heat now shown to be relatively harmless-around 767.° the average temperature at which tobacco burns in a pipe. (This might be done either by adding a chemical to the tobacco, or-more likely-by changing the cut to resemble that of pipe tobacco...