File:1958. Russ Mitchell, Robert Furniss, and T. Silver. Chermes (balsam woolly adelgid) conference and field trip. Mount St. Helens, Washington. (24900325227).jpg
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![File:1958. Russ Mitchell, Robert Furniss, and T. Silver. Chermes (balsam woolly adelgid) conference and field trip. Mount St. Helens, Washington. (24900325227).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/1958._Russ_Mitchell%2C_Robert_Furniss%2C_and_T._Silver._Chermes_%28balsam_woolly_adelgid%29_conference_and_field_trip._Mount_St._Helens%2C_Washington._%2824900325227%29.jpg/781px-1958._Russ_Mitchell%2C_Robert_Furniss%2C_and_T._Silver._Chermes_%28balsam_woolly_adelgid%29_conference_and_field_trip._Mount_St._Helens%2C_Washington._%2824900325227%29.jpg?20180503235339)
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