Thinking about scientific thinking : Henry M. Cowles: The scientific method. An evolution of thinking from Darwin to Dewey. Cambridge, Mass.: Harvard University Press, 2020, 372 pp, $35.00 HB : Henry M. Cowles: The scientific method. An evolution of thinking from Darwin to Dewey. Cambridge, Mass.: Harvard University Press, 2020, 372 pp, $35.00 HB