Computers & Geosciences, 1998, V 24, N 6, 1 July.

G. Gottardi, POLF: Two-dimensional finite-element model for predicting the
areal flow of pollutant in confined and unconfined aquifers, 
pp. 509-522

Tien-Chang Lee, LEEGRAM: a program for normalized Stiff diagrams and
quantification of grouping hydrochemical data,
 pp. 523-529

James R. Carr, Kenneth Mela, Visual Basic programs for one, two or
three-dimensional geostatistical analysis
pp. 531-536

Eulogio Pardo-Igúzquiza, MLREML4: A program for the inference of the power
variogram model by maximum likelihood and restricted maximum likelihood,
pp. 537-543

R. J. Durrheim, G. R. J. Cooper, EULDEP: a program for the Euler
deconvolution of magnetic and gravity data, 
pp. 545-550

Clayton V. Deutsch, Cleaning categorical variable (lithofacies)
realizations with maximum a-posteriori selection, 
pp. 551-562

Steve Horne, Colin MacBeth, A comparison of global optimisation methods for
near-offset VSP inversion, 
pp. 563-572

Katsuaki Koike, Shuichi Nagano, Kouji Kawaba, Construction and analysis of
interpreted fracture planes through combination of satellite-image derived
lineaments and digital elevation model data, 
pp. 573-583

Christopher Shorrock, Richard J. Lisle, DATACON: A quickbasic program to
reformat orientation data from faults, 
pp. 585-590

R. A. White, D. A. Miller, Processing soil survey information with Perl,
pp. 591-593