This directory contains the following documentation for GRASS 4.1: ------------------------------------------------------------------ SG3d.ps.Z - a guide to the SG3d utility for Silicon Graphics workstations XUserGuide.ps.Z - The XGRASS Users' Guide installGuide.ps.Z - installation guide for GRASS 4.1. OGI considers this to be ESSENTIAL for the compilation and installation of GRASS 4.1. manuals - directory containing Users' & Programmers' manuals mapcalc-algebra.ps.Z - r.mapcalc: An Algebra for GIS and Image Processing mapcalc.ps.Z and mapcalc.txt.Z - Performing Map Calculations on GRASS Data: r.mapcalc Program Tutorial spear.DB.ps.Z - Spearfish database information tiger.import.ps.Z and tiger.RIM.ps.Z - Tutorials for TIGER data routines