Subject: Northern Carbon Research Laboratories. Frangula Alnus. Note dated 17 October 1979 on examination of sample by scanning electron microscope, made by Eileen McAuliffe from the University of Newcastle on Tyne.
Description: Northern Carbon Research Laboratories. Frangula Alnus. Note dated 17 October 1979 on examination of sample by scanning electron microscope, made by Eileen McAuliffe from the University of Newcastle on Tyne.
