The choice of both British and American scientific clubs, this book deals with scientific research as a form of human action. The producers as well as the products of scientific research are examined and described. "The scientist himself becomes a part, not only of his apparatus, but of his results also. To talk about science without talking about the scientist is rapidly becoming meaningless. The research worker, as a pure-reason machine, is abandoned for the idea of a biological unit reaching to, and acting upon, an everchanging environment." The first part, on the scientific outlook, discusses qualities of scientific research (action, facts, the arrangement of facts, newness), description versus absolute truth, change and the uniformity of nature, the should-ought mechanism and assessment of value; the second part, getting scientific facts, the eyewitness's observation, scientific observation, pattern, the question whether facts are first seen in isolation, selection and abstraction; the third