'A singular achievement. Sheehan is masterful in her presentation of the dialectics of nature debates, which begin with Engels and recur throughout the periods covered by this book.' --Science and Society

Professor Helena Sheehan is an academic philosopher, historian of science, and writer on communication studies, politics, and philosophical (particularly Marxist) subjects. Sheehan is a retired (Professor Emeritus) Communications lecturer at Dublin City University and has been a visiting professor at the University of Cape Town. She is the author of five books.