Word: tracing
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...amount of zinc in the human body is so small that textbooks offhandedly record its presence as "a trace." That trace, though, seems important indeed. Small as it is, the body's normal zinc supply is a vital factor in growth. If the supply is increased with daily capsules of an inexpensive zinc compound, said a report sent by Air Force Major Walter J. Pories to the International Congress of Military Medicine in Bangkok, tissue grows so quickly that wounds tend to heal far faster than usual...
...poison that caused symptoms indistinguishable from those of cholera. In 1832, a simple method was developed to detect the arsenic in a cadaver. But by then the chemists had discovered the vegetable alkaloids-morphine, strychnine, cocaine, nicotine, quinine and so on. These poisons seemed to dissolve without a trace in the body of the victim, and for several decades all attempts to demonstrate their presence destroyed both the tissue and the poison. When toxicologists at last learned to detect them, a new problem had appeared with the synthetic alkaloids-Demerol, Dolantin, Pethidine and other modern sedatives. All of them...
...blackout itself remained a mystery yesterday and federal investigators admitted they might never be able to trace the origin of the 80,000 square mile power failure...
...Museum of Fine Arts asked Stieglitz for a set of photographs to inside in its print collection. Early in 1924 Stieglitz sent the Museum 27 prints. The Museum collection now numbers 69 photographs, which are all on display this week. They begin with his early period in Berlin, and trace his artistic progression throughout his career...
...Boorstin protested what he considered an overemphasis on the European origins of American identity, went in search of the uniquely American in America. Now, in the second volume of this enormously rich and suggestive survey, he considers the period between the Revolution and the Civil War, and seeks to trace in the earliest records of the nation the traits that have dominated its later history...