1. Interactions among nickel, copper, and iron in rats

   • Forrest H. Nielsen
   • Thomas J. Zimmerman

   Original Articles Pages: 83 - 98

2. Variability of zinc concentrations in human stimulated parotid saliva

   • Doris C. Warren
   • Helen W. Lane
   • Margaret Mares

   Original Articles Pages: 99 - 105

3. Influence of ashing techniques on the analysis of trace elements in animal tissue

   • Michael S. Clegg
   • Carl L. Keen
   • Lucille S. Hurley

   Original Articles Pages: 107 - 115

4. Failure to confirm abnormal copper utilization in crinkler (cr) mice

   • Jeffrey R. Mann
   • James Camakaris
   • David M. Danks

   Original Articles Pages: 117 - 131

5. Relation between arsenic in drinking water and skin cancer

   • E. Astolfi
   • A. Maccagno
   • R. Stímola

   Review Pages: 133 - 143

6. Book reviews

   • Gerhard N. Schrauzer

   Review Pages: 145 - 146

7. Announcements

   Announcement Pages: 147 - 147