1. The combination of sampling and kriging in the regional estimation of coal resources

   • T. H. Starks
   • N. A. Behrens
   • J. H. Fang

   OriginalPaper Pages: 87 - 106

2. Statistical properties of accumulated values and their application in mining estimations

   • T. R. P. Singh

   OriginalPaper Pages: 107 - 123

3. Censoring and edge effects in areal and line transect sampling of rock joint traces

   • G. M. Laslett

   OriginalPaper Pages: 125 - 140

4. Paired comparison models in biostratigraphy

   • Carolyn Brauer Hudson
   • Frederik P. Agterberg

   OriginalPaper Pages: 141 - 159

5. Variations of some heavy minerals in recent beach sands

   • A. B. Vistelius
   • M. E. Demina

   OriginalPaper Pages: 161 - 187

6. A note on the asymptotic distribution of the sample variogram

   • Bruce M. Davis
   • Leon E. Borgman

   OriginalPaper Pages: 189 - 193

7. James Clerk Maxwell, the first quantitative geomorphologist?: Discussion

   • David M. Mark
   • William Warntz

   Letters to the Editor Pages: 195 - 197

8. OES solicits suggestions

   • John C. Crowell

   OriginalPaper Pages: 199 - 199

9. Announcement

   • C. John Mann

   Announcement Pages: 201 - 201

10. Announcement

    • Roger Markham

    Announcement Pages: 203 - 203