In the U. S. there are at least 2,000,000 people who are twins, triplets or quadruplets. The man who gets asked most about them is Geneticist Horatio Hackett Newman of the University of Chicago. In the past 25 years he has received hundreds of letters from twins, "supertwins," parents of twins, and women who want them. They ask him all sorts of questions, "some sensible, some rather silly." Last fortnight Professor Newman published a book on Multiple Human Births (Doubleday, Doran; $2.50) which ought to get him ahead of the questions for the next...
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