The National Academy of Engineering called him a "world leader" in reservoir engineering.

The National Academy of Engineering called London "one of the world's best known experts in heat transfer equipment design, performance and analysis."

The National Academy of Sciences called Perman "a world leader on the systematics of alpha decay".

The National Academy of Sciences called Ferry "a towering figure in polymer science".

Some supplements provide as much as 4,500 micrograms a day, well above the level that the National Academy of Sciences calls an upper limit for safety.

The National Academy of Sciences called him "one of the foremost geophysicists of the twentieth century, an outstanding leader, scholar, and teacher".

Nor did she know that in 1975, the National Academy of Sciences would call it one of the 36 most promising crops in the world.

The National Academy of Sciences called Crane "an extraordinary physicist".

The National Academy of Engineering called Gandhi "one of the world's foremost authorities in the area of automotive emissions control".

The National Academy of Sciences called him "a distinguished physician, a master teacher, and a pioneer in research on cell-mediated immunity".