1. Important announcement

   Announcement Pages: 1 - 1

2. Mathematical geology and development of the geological sciences

   • Andrew B. Vistelius

   OriginalPaper Pages: 3 - 8

3. Delineation and analysis of clusters in orientation data

   • R. J. Shanley
   • M. A. Mahtab

   OriginalPaper Pages: 9 - 23

4. Principal components analysis using the hypothetical closed array

   • John C. Butler

   OriginalPaper Pages: 25 - 36

5. Empirical behavior of Chayes' null model

   • E. L. Zodrow

   OriginalPaper Pages: 37 - 42

6. Finite-element method in modeling geologic transport processes

   • Ralph Ta-shun Cheng
   • Dennis S. Hodge

   OriginalPaper Pages: 43 - 56

7. Multivariate correlation analysis of suspended-sediment characteristics

   • Satoshi Yamamoto

   OriginalPaper Pages: 57 - 74

8. Implementation of criteria for partitioning a dendrogram

   • Julian D. Orford

   OriginalPaper Pages: 75 - 84

9. Discovery of deposits of given size in boreholes with preselected probability

   • A. M. Shurygin

   Short Notes Pages: 85 - 88

10. Critical values for a measure of contiguity of anomalous points in a grid survey

    • John H. Davis

    Short Notes Pages: 89 - 94

11. Some applications of point processes to geology

    • Richard Reyment

    Short Notes Pages: 95 - 97

12. Association announcements

    • E. Dudich
    • I. Dienes
    • M. A. Romanova

    Announcement Pages: 99 - 103

13. Letters to the editor

    • K. R. Anderson
    • R. L. Sandefur

    Letter Pages: 105 - 106

14. Reviews

    • Vassil T. Vuchev
    • D. F. Merriam
    • John M. Cubitt

    ReviewPaper Pages: 107 - 111