Source files for the FORTRAN programs in the book Introduction to Groundwater Modeling (copyright 1995 Academic Press, Inc.) by H. F. Wang and M. P. Anderson are listed here by the figure number in the book. Permission is granted to the user displaying this material to copy the material onto a single computer and to make print copies of the material for personal use only. Any other copying, other redistribution, or any commercial use of the material requires the permission of the publisher, which may be requested by contacting Academic Press at 6277 Sea Harbor Drive, Orlando, FL 32887-4900.