Robert B. Leonard

• Changes in chemical quality of water, Cedar Bluff Irrigation District area, west-central Kansas
• Changes in quality of ground water in the Lincoln area, Montana, 1974-79
• Chemical quality of water in the Walnut River Basin, south-central Kansas
• Evaluation of a hydrothermal anomaly near Ennis, Montana
• Geothermal gradients in the Missoula and Bitterroot Valleys, west-central Montana
• Saline water in the Little Arkansas River basin area, south-central Kansas
• Selected data from thermal-spring areas, southwestern Montana
• Supplemental data from the Ennis and other thermal-springs areas, southwestern Montana, 1978-80