1. Foreword

   EditorialNotes Pages: 193 - 194

2. Toxicity and persistence of PCB homologs and isomers in the avian system

   • Brian Bush
   • Casimir Francis Tumasonis
   • Frederick Donald Baker

   OriginalPaper Pages: 195 - 212

3. Dissipation and degradation of ALAR® in soils under greenhouse conditions

   • Leland E. Dannals
   • R. James Puhl
   • Norbert Kucharczyk

   OriginalPaper Pages: 213 - 221

4. DDT thins shells of eggs from mallard ducks maintained onad libitum or controlled-feeding regimens

   • K. L. Davison
   • J. L. Sell

   OriginalPaper Pages: 222 - 232

5. Use of mice for initial approximation of reentry intervals into pesticide-treated fields

   • F. E. Guthrie
   • J. J. Domanski
   • R. R. Monroe

   OriginalPaper Pages: 233 - 242

6. The effects of phenobarbital and carbon tetrachloride on the rate of decline of body burdens of hexachlorobenzene in the rat

   • D. C. Villeneuve
   • W. E. J. Phillips
   • D. L. Grant

   OriginalPaper Pages: 243 - 252

7. The distribution of heavy metals in the red abalone,Haliotis rufescens, on the California coast

   • Victor Anderlini

   OriginalPaper Pages: 253 - 265

8. Determination of methylmercury in water

   • Alan A. Stevens
   • Eric A. Robertson

   OriginalPaper Pages: 266 - 274

9. Ultraviolet and volatility loss of herbicides

   • J. R. Baur
   • R. W. Bovey

   OriginalPaper Pages: 275 - 288