Historical specimens and documents in natural history collections can reveal how people interacted with nature and approached science, where they spent their time and how they traveled, and how the very landscape has changed over time.
Let's look at a few of the people and places that emerged from the Academy's herbarium through the botany project.
Hibiscus, herbarium specimen (1874-01) by Elizabeth Emerson AtwaterChicago Academy of Sciences / Peggy Notebaert Nature Museum
Women In Science
Historic collectors’ names on specimen labels often require deciphering as many times they are given as just the last name or initials and a last name. Women are often even more hidden, as it was common practice as a married woman to be known by your husband’s name. In the Academy’s collections, delving into collector’s names has revealed numerous women in science.
Delicate Sea Lace, herbarium specimen (1873) by Elizabeth Emerson AtwaterChicago Academy of Sciences / Peggy Notebaert Nature Museum
One notable individual is Elizabeth Emerson Atwater (1812-1878). Atwater came from a wealthy family with many advantages in life, including schooling, where she began her interests in science, particularly botany.
She had a love for nature and collected plants locally in the Chicago area and across the United States. She also had a large circle of friends with whom she exchanged exotic plant, mineral, and cultural specimens. She identified some plants new to science and had species named for her.
Mary Agnes Chase (1869-1963) was a self-educated botanist who started her pathway in botany in Chicago, where she learned to prepare plant specimens and began collecting. She began making illustrations for botanical publications in the 1890s for the Field Museum and the US Department of Agriculture. She eventually went on to work at the Smithsonian's National Herbarium, where she developed her expertise in American grasses and contributed to the field for over 60 years.
The Academy houses some of Chase's early collections, including this grass-like plant called a Wood Sedge collected in River Forest, Illinois in 1897. Chase became and expert in agrostology, the study of grasses, and was passionate about public outreach and mentoring, especially for other young female botanists. She collected specimens on expeditions throughout Latin America, and later published an educational book on grasses for beginners, translated into Spanish and Portuguese.
River narrowing down center of Apple River Canyon (GPN-996) (1860/1941) by Herman Silas PepoonChicago Academy of Sciences / Peggy Notebaert Nature Museum
Local Naturalists
Regional natural history collections, like the Academy's, focus on a geographic area. These collections often provide details about the people historically involved in studying the environment.
Herman Silas Pepoon (1860-1941) was a botanist and naturalist in the Chicago region. He studied local native plant species and how many of these natural habitats were being changed by the encroachment of agriculture and introduction of non-native plant species. He wrote the first book on plant species in Chicago, “An Annotated Flora of the Chicago Area,” in 1927.
Bird's Eye Primrose (1860/1941) by Herman Silas PepoonChicago Academy of Sciences / Peggy Notebaert Nature Museum
He documented of 500 species of plants in the Apple River Canyon and his work helped establish protections for this area, helping to designate it as a state park.
These local collections can be an important resource for research into how the local environment has changed and enable current scientists to build on the work done historically.
Natural history collections can also document events, both local and at a broader scale.
Wolfe's Currant, specimen label (1873) by John WolfeChicago Academy of Sciences / Peggy Notebaert Nature Museum
Western Surveys
After the Civil War, government-sponsored expeditions into the western territories sought to map out the land and catalog its natural resources in order to pave the way for an invasion of settlers. In the process, many specimens of plants, animals, and fossils were collected and sent to eastern museums for study. In 1873, two botanists named John Wolfe and J.T. Rothrock accompanied a party of US Army engineers to Colorado where they collected and documented more than 12,000 specimens.
Crazy-Weed, herbarium specimen (1873) by John WolfeChicago Academy of Sciences / Peggy Notebaert Nature Museum
While Wolfe tirelessly collected, Rothrock authored the official publication on the botanical findings of the expedition, including a newly discovered species named after Wolfe himself. According to Rothrock’s description:
“[Ribes wolfii] may prove to be a mere variety of Ribes sanguineum, though I think it sufficiently distinct to bear the name of its zealous discoverer, Professor Wolfe.”
Insect damage is an unfortunate but not uncommon reality for natural history collections. Most of the backlog’s contents were found in excellent condition, but those that deteriorated, like this unmounted specimen of Ribes wolfii, can still be salvaged. To prevent further damage and protect the rest of the collection from potential infestation, collections staff will put the specimen through a freezer treatment to destroy any tiny pests that might still be present.
“Astragali are out in force on the plains,” wrote Rothrock to the famous American botanist Asa Gray, referring to the great quantity of plants in the genus Astragalus. While the majority of specimens from federal expeditions were sent to the Smithsonian’s National Museum in Washington DC, many duplicates were deliberately collected so they could be distributed to other institutions, including the Chicago Academy of Sciences.
Natural history collections document plant and animal species found in different places and at different times. These are the key pieces of data needed for scientific specimens. Sometimes, though, they document more. They can be used to understand people -- how people moved and traveled, what they learned and the framework of that understanding, and how they interacted with nature.
Historic photographs digitized and content written and researched for the initial online exhibit, “The Botanical Time Capsule,” by Alex Lorenz in December 2023. Special thanks to Collections staff for supporting this project, which counts towards the completion of my Master of Library and Information Science degree.
Content updated and split into three online exhibits (“Herbariums - A Plant Archive”, “The Botanical Time Capsule”, and “The People and Places in Collections”) by Dawn Roberts in June 2024.
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