The major change in the format of the fifth edition is the presentation of the book in two volumes, necessitated by the rapidly increasing knowledge of metabolism, interactions, and requirements of trace elements. The guiding principle was to present the minimum of results that would serve as a logical foundation for the description of the present state of knowledge.
Methods of Trace Element Research, J.C. Smith, Jr.,
Quality Assurance for Trace Element Analysis, W.R. Wolf.
Iron, E.R. Morris.
Cobalt, R.M. Smith.
Manganese, L.S. Hurley and C.L. Keen.
Chromium, R.A. Anderson.
Nickel, F.H. Nielsen.
Vanadium, F.H. Nielsen.
Copper, G.K. Davis and W. Mertz.
Fluorine, K.A.V.R. Krishnamachari.
Mercury, T.W. Clarkson.
Molybdenum, C.F. Mills and G.K. DavisEach chapter includes references.