The reason I was so interested in those books was about Dr. Seagraves treating and curing of TB. MY Aunt S----- was in a sanitarium with TB [approx 3 years] and no improvement in sight.Also another aunts' daughter, [my cousin] was in a different Sanitarium with TB. Somebody who knew about this Dr. Seagrave and his treating of TB was able to smuggle the herb he used,Umkaloba [spelling ?] to them,eventually they were discharged as cured. This took place back in the 50s My Aunt S lived to a ripe old age,with a bit of a wheeze . My cousin just passed away a few years ago. The Aunts were sisters.
Harold

