|Summary:||Correspondence and other papers regarding taxonomic investigations of Pacific Northwest plants, of which a major part consists of approximately 50,000 notes and references to literature on Northwest flora and historical and biographical aspects of Northwest botany. Significant correspondents: C.E. Bessey, L.F. Henderson, Aven Nelson, C.V. Piper, Harold St. John, W.N. Suksdorf, A.R. Sweetser.
|Summary:||Correspondence, enclosures, bills and receipts, drafts, and copies of writings, herbarium catalogs, field notes, maps, diaries, published works and other papers, part in German, of a Pacific Northwest botanical collector. Although primarily concerned with his collection of plants and the subsequent classification and distribution of specimens, some personal and family papers are included. Correspondents include: R. Kent Beattie, Alice Eastwood, Asa Gray, Louis Henderson, Thomas Howell, Charles Piper, and Harold St. John.