Notebook of doctor's notes

File Folder 1: Photographs of rat and mice cell studies

File Folder 2: Notes on animal experiments

File Folder 3:  paper on bone marrow research
 
  "The Regenerative Potential of Bone Marrow Following Diagnostic
Aspiration" /Zipf, Robert E.; Cowden, Richard N.; Doan, Charles A.

Ohio's Health Center/The Ohio State Journal, 1953.

Speaker's Kit: What You Should Know About Biological Warfare/ Federal
Civil Defense Administration, Washington, D.C.

"Histopathological Study of Sprague-Dawley Rats Injected Intravenously with Varying Amounts of Polonium"/ Cowden, R.N.  April 1, 1952.  Deemed unclassified.