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Termites, nest of Eutermes triodiae in Australia, image from a printed book
Termites, nest of Termitieres de Madagascar, image from a printed book
Termites, Protozoa from intestine, image from From Biological Bulletin, Vol. XLVIII
Termites, shelter tubes, Leucotermes flavipes, Washington D.C., image from a printed book
Termites, Termes lucifugus, development of worker and soldier, illustration from a printed book
Termites, Termes notalensis, royal chamber showing king, queen, workers, image from a printed book
Termites, Termes redemanni, queen, image from a printed book
Termites, termitarium 35 ft. high in the Kenya Colony, Africa, image from National Geographic Magazine
Termites, Termitophilous fly, illustration from a printed publication
Termites, Termitophilous staphylinid, illustration from a printed publication
Termites, Trinervitermes biformis, large and small soldier, illustration from a printed book
Tetrapteryx stages in bird ancestry, illustration from William Beebe, "The Bird Its Form and Function"
Text, Analysis of Minnesota Bird-Life
Text, Veritas caput, Itasca Park, origin of its name from Jacob Brower's "Itasca State Park: An Illustrated History," 1904
Text, Winter Home of Minnesota Birds
The boat named "Fram" at Crane Island on Lake Minnetonka
The Flight of Birds, Frederick Webb Headley
The Flight of Birds, Frederick Webb Headley
Theoretic World Environment, Cretaceaous image from Henry Fairfield Osborn, "Origin and Evolution of Life"
Theoretic World Environment image from Henry Fairfield Osborn, "Origin and Evolution of Life"
The Wales' coach and party
Thief Lake and willows at mouth of Moose River
Thief Lake Camp
Thimbleberry, North Shore of Lake Superior
Thimbleberry, North Shore of Lake Superior
Thimbleberry, North Shore of Lake Superior
Third glacial epoch, chart from a printed publication
Thomas Cleveland Roberts holding his son Thomas Reaser Roberts with Thomas Sadler Roberts, grandfather, standing
Thomas Cleveland Roberts holding his son Thomas Reaser Roberts with Thomas Sadler Roberts, grandfather, standing
Thomas Henry Huxley, 1857, at 35, portrait, image from a printed publication
Thomas Sadler Roberts, age 58
Thomas Sadler Roberts at work scrubbing the walk
Thomas Sadler Roberts holding his grandson Thomas Reaser Roberts with son Thomas Cleveland Roberts standing
Thomas Sadler Roberts on Gull Rock, Lake of the Woods
Thomas Sadler Roberts on Hennepin Island on Lake Mille Lacs
Thomas Sadler Roberts's grandaughter
Thomas Sadler Roberts's grandaughters at Anna's House
Thomas Sadler Roberts standing near garden in an open lawn
Thomas Sadler Roberts standing near tree
Thomas Sadler Roberts standing near tree
Thomas Sadler Roberts with his granddaughters Catherine and Jane
Thomas Sadler Roberts with two in bird class, Dorothy S. Carlson and Eleanor Boynton
Thomas S. Roberts with William Kilgore
Three-decked nest of a Yellow Warbler
Three-decked nest of Yellow Warblers
Three women sitting on the Semple porch
Three young girls standing behind a Leatherwood Bush
Three young Kingbirds
Three young Kingbirds
Thrushes, Hermit, Gray-cheeked, Olive-backed, illustration from Bird-Lore magazine