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Bur Oak (Quercus macrocarpa) in the Light of Early Winter, Glacial Park, McHenry County, Illinois, USA
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In the Unlikely Event You Encounter an Architectural Geologist, Avoid Eye Contact and Walk Purposefully Away
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The Earth's Mantle Reflecting the Noonday Sun: Grand Army of the Republic Hall, Chicago Cultural Center, Chicago, Illinois, USA (1897)
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Geobrickology, Part 1: Old St. Patrick's Catholic Church, Near West Side, Chicago, Illinois, USA (1856)
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Devil's Urn (Urnula craterium), Bottomland Forest Floor, Ryerson Conservation Area, Riverwoods, Illinois, USA
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Light in the Forest: Laetiporus cincinnatus, McCormick Ravine, Lake Forest, Illinois, USA
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Graveyard Geology of Chicago, Part 2: Detail of the Carrie Eliza Getty Tomb, Graceland Cemetery, Uptown Neighborhood (1890)
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Graveyard Geology of Chicago, Part 1: The Carrie Eliza Getty Tomb, Graceland Cemetery, Uptown Neighborhood (1890)
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Section of Bur Oak Savanna in Late-Summer Sun, Western Bluff of the Fox River, Chain O'Lakes State Park, Illinois, USA
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Geobrickology, Part 10: Detail of the Frederick C. Robie House, Hyde Park Neighborhood, Chicago, Illinois, USA (1909)
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Dryad's Saddle (Polyporus squamosus) on a Hardwood Tree, Red Oak Nature Center Grounds, North Aurora, Illinois, USA
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Botanical Current Events, Part 1: A Sign of the Waning Summer | Beach Park, Illinois, USA
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The Botany of Illinois Beach, Part 3: The Redcoats Are Coming! British Soldiers Lichen (Cladonia cristatella), Camp Logan Unit, Illinois Beach State Park, Illinois, USA
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The Botany of Illinois Beach, Part 2: Tuberous Grass Pink Orchid (Calopogon tuberosus), Southern-Unit Nature Preserve, Illinois Beach State Park, Illniois, USA
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Daily News Building (2 N. Riverside Plaza), Near West Side, Chicago, Illinois, USA (1929)
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The Bounty of Bell Smith Springs, Part 1: Under the Natural Bridge, Bell Smith Springs, Shawnee National Forest, Illinois, USA
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The Glory of Regional Silurian Dolostone, Part 1: University Hall, Northwestern University, Evanston, Illinois, USA (1869)
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The Geology of Terra-Cotta, Part 6: Detail of the Facade, Krause Music Store, Ravenswood Neighborhood, Chicago, Illinois, USA (1922)
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The Botany of Illinois Beach, Part 1: Wild Lupine (Lupinus perennis), Southern-Unit Nature Preserve, Illinois Beach State Park, Illinois, USA
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The Geology of Terra-Cotta, Part 1: Railway Exchange Building, the Loop, Chicago, Illinois, USA (1904)
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The Glory of Regional Silurian Dolostone, Part 24: Detail of the Eastern Elevation, Holbrook Mill, Aurora, Illinois, USA (ca. 1840)
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The Brownstone Chronicles, Part 1: Detail of John Howland Thompson House, Chicago, Illinois, USA (1888)
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Contemplating the Bean's Deeper Implications at Sunset, Millennium Park, Chicago, Illinois, USA
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Cliff Face of the Pounds Sandstone Member, Caseyville Formation, Ferne Clyffe State Park, Illinois, USA
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Bloodroot (Sanguinaria canadensis), Lake Michigan Blufftop Woodland, McCormick Ravine Nature Preserve, Lake Forest, Illinois, USA
