ROY S. PORTER, The earth sciences. An annotated bibliography, New York and London, Garland Publishing, 1983, 8vo, pp. xix, 192, illus., $37.00. This handsome volume offers 808 secondary bibliographical references on the history of the earth sciences. It is the third volume in the series Bibliographies ofthe history ofscience and technology, edited by Robert Multhauf and Ellen Wells. Porter's bi...