Here’s a partial list of the adult-education courses Ray has taught over the past two decades:
- Architectural Geology of Chicago
- Exploring Ethnobotany
- Finding One’s Way: Cartography, Map-reading, and Global Positioning System Skills
- Fossils of the Great Lakes Region
- Fossils of the Midwest
- Global Positioning System and Compass Skills
- Illinois Geology: Glaciers and Tropical Seas
- Introduction to Botany and Taxonomy
- Local Flora: Fall
- Local Flora: Spring
- Orchid Care Workshop
- Orchids for Beginners
- Pests and Diseases of Indoor Plants
- Phytogeography
- Plant-Soil Relationships
- Reading the Landscape
- Reading the Landscape of Northeastern Illinois
- Rocks and Minerals of the Midwest
- Soil Science Basics for Landscaping Professionals
- The Botany of Architecture
- The Evolving Illinois Landscape
- The Roots of Genius: The Botany of Louis Sullivan’s Architectural Designs
- Understanding Soils
- Understanding the Grasses
- Urban Street Tree Care
- Urban Street Tree Care
- Weather and Climate of the Chicago Region
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