Mount St. Helens ash and mud
Subtitle: chemical properties and effects on germination and establishment of trees and wildlife browse plants
By: M.A. Radwan and Dan L. Campbell
Contributors: Campbell, Dan L; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: Research paper PNW / Pacific Northwest Forest and Range Experiment Station -- 294; Research paper PNW -- 294
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1981
Place of publication: Portland, Or
Language: eng
Subjects: Volcanic ash, tuff, etc. -- Washington (State) -- Saint Helens, Mount; Germination
Notes: "November 1981."

Bibliography: p. 8