1. Derivatives and FORTRAN subroutines for a least-squares analysis of the hyperbolic distribution

   • David S. McArthur

   Articles Pages: 441 - 450

2. Fundamental problems associated with “eigenshape analysis” and similar “factor” analysis procedures

   • W. E. Full
   • Robert Ehrlich

   Articles Pages: 451 - 463

3. Applications of maximum entropy and optimal number of class interval concepts: Two examples

   • Gerardo M. E. Perillo
   • Eduardo Marone

   Articles Pages: 465 - 476

4. A parametric study of robustness of kriging variance as a function of range and relative nugget effect for a spherical semivariogram

   • P. I. Brooker

   Articles Pages: 477 - 488

5. A heuristic search method for optimal zonation of well logs

   • Hui-Chuan Chen
   • J. H. Fang

   Articles Pages: 489 - 500

6. “Matheronian geostatistics—Quo vadis?” by G. M. Philip and D. F. Watson

   • D. G. Krige

   Letter To The Editor Pages: 501 - 502

7. Philipian/Watsonian high (flying) philosophy

   • G. Matheron

   Letter To The Editor Pages: 503 - 504

8. Geostatistics and spatial data analysis

   • G. M. Philip
   • D. F. Watson

   Letter To The Editor Pages: 505 - 509

9. Book review

   • G. Leigh Anderson
   • Denis Marcotte

   BookReview Pages: 511 - 515