Dahlberg, R.C.Oswald, W.L.2017-02-132017-02-131918-07Dahlberg, R.C.; Oswald, W.L. Fourth Annual Seed Laboratory Report. 1918. Saint Paul, Minn.: University of Minnesota. Agricultural Experiment Station. Bulletin 175, pages 3-14https://hdl.handle.net/11299/184098This archival publication may not reflect current scientific knowledge or recommendations. Current information available from University of Minnesota Agricultural Experiment Station: http://www.maes.umn.edu/enNewsletter or Bulletin