1. On the distribution of atoms in magmatic systems: Normal geochemical law

   • B. Choubert
   • L. Zanone

   OriginalPaper Pages: 349 - 374

2. Graph theory and digitization of geological maps

   • F. Bouillé

   OriginalPaper Pages: 375 - 393

3. Minres factor analysis of hypersthene data, Strathcona Mine (Ontario, Canada)

   • E. L. Zodrow

   OriginalPaper Pages: 395 - 412

4. Discriminant trace-element analysis of strata in the Witwatersrand System

   • Ronald I. Hutchison
   • Donald L. Skinner
   • Donald R. Bowes

   OriginalPaper Pages: 413 - 427

5. Topological properties of disjoint channel networks within enclosed regions

   • Michael F. Dacey
   • W. C. Krumbein

   OriginalPaper Pages: 429 - 461

6. Cluster models for earthquakes: Regional comparisons

   • L. Adamopoulos

   OriginalPaper Pages: 463 - 475

7. Entropy in Markov chains and discrimination of cyclic patterns in lithologic successions

   • Isamu Hattori

   OriginalPaper Pages: 477 - 497

8. Errors in the calculation of similarity coefficients

   • Pascal de Caprariis

   OriginalPaper Pages: 499 - 503

9. A degenerated case of the model of the ideal granite

   • Andrew B. Vistelius

   OriginalPaper Pages: 505 - 506

10. Letter to the editor

    • I. Dienes

    Letter Pages: 507 - 509