Word: tars
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Although the major cancer-causing substance in cigarette tar has not yet been identified, so much is now known about it that smoking could be rendered relatively harmless-without waiting for the substance to be isolated. This reassurance came last week from the man who, since his student days, has been busy amassing proof that heavy, long-continued cigarette smoking is the main cause of the recent dramatic increase in lung cancer: Dr. Ernest L. Wynder, 34, of Manhattan's Sloan-Kettering Institute...
...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...
While cancer of the lung has become much more prevalent in recent years, cancer of the mouth has not. Medical researchers have been puzzled by this, since cancer-causing agents, e.g., tobacco tar, reach the lungs through the mouth. In the Journal of the American Dental Association, investigators offer two tentative explanations: saliva has a protective effect, though whether this is brought about simply by washing away the cancer agent or by combating it chemically is not known; the tissues of the mouth are so constructed as to constitute a kind of "physiological barrier" against the entry of cancer agents...
Lean, blue-eyed Captain Moureau, 37, was district government officer in Tar-jicht, Morocco, a district the size of Massachusetts but with a meager population of tribesmen, camels and sheep. He ruled his desert strip so successfully and was liked by its people so well that he stayed on after the French withdrew from Morocco. Then the Moroccan "Army of Liberation" came to pillage Tarjicht, and nine months ago Captain Moureau disappeared. But the desert has its verbal grapevine, and over this came, piece by piece, news of Captain Moureau's fate: emasculated, both arms broken, he was, when...
...slight jolt in the first event of the 34th NCAA Championships here last night. Michigan's Fritz Myers pulled even with the Elis' Ray Ellison at the three-quarters mark in the 1500-meter freestyle, then stroked on to upset the Eastern champion in 19:04.8. This ties the Tar Heel Pool record set in 1949 by N. Heusner of North-western...