A breathlessly lovely book, a rare combination of scientific accuracy and sensitivity to impressions, emotional implications, ultimate values in everything she touches. This is a log of the flight across the Atlantic from Africa to Brazil, ten days out of the survey of north Atlantic coast routes. But the book covers far more than mere experience of the moment, for it senses space and time, nature at her best and worst, the terrors and dangers and discomforts and discouragements as a carefully planned scientific experiment faces disaster at the hands of freakish winds.