Before there was Rogaine, there was this home remedy for thinning hair:
I found this hand-written note tucked in the "baldness" section of my copy of The Modern Home Physician: A New Encyclopedia of Medical Knowledge, edited by Victor Robinson, Ph. C., M.D., and published by Wm. H. Wise & Company in 1942.
While I miss the thick head of hair I had as a young'un, I think I'll stick to my dermatologist's advice and reconcile myself with my less-than-lush head of hair.