The 300 x 150 dpi PDF linked to it is printable on your local printer. More information on the Open Book is available. Copyright 2000, the National Academy Press. Keywords, machine extracted. Top 50 words repeated twice, next 100 once, plus phrases.
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Printed in the United States of America. The National Academy of Sciences is a private, nonprofit, self-perpetuating society of distinguished scholars engaged in scientific and engineering research, cledicatect to the furtherance of science and technology and to their use for the general welfare. Dr. Bruce Alberts is president of the National Academy of Sciences. The National Academy of Engineering was established in 1964, under the charter of the National Academy of Sciences, as a parallel organization of outstanding engineers. Dr. William Wulf is president of the National Academy of Engineering.