Correspondence documents communications between O. L. Cartwright and Walter Plath relating to beetle collecting, 1961 - 1977. They detail information about Plath's specimen collecting, describing details of the location (often around swimming pools). Locations are usually in Dunnville, Ontario, Canada.
Many of SIA's holdings are located off-site, and advance notice is recommended to consult a collection. Please email the SIA Reference Team at osiaref@si.edu.