Zinc, K.M. Hambidge. Iodine, B.S. Hetzel and G.F. Maberly. Selenium, O.A. Levander. Lead, J. Quarterman. Cadium, K. Kostial. Arsenic, M. Anke. Silicon, E.M. Carlisle. Lithium, W. Mertz. Alu…
Zinc, K.M. Hambidge. Iodine, B.S. Hetzel and G.F. Maberly. Selenium, O.A. Levander. Lead, J. Quarterman. Cadium, K. Kostial. Arsenic, M. Anke. Silicon, E.M. Carlisle. Lithium, W. Mertz. Aluminum, A.C. Alfrey. Other Elements, F.H. Nielsen. Soil-Plant-Animal Relationships, W.H. Allaway. Each chapter includes references. Index.