Capsicum (95 pgs.)
Conditions & Ailments (467 pgs.)
Every Womans Herbal (267 pgs.)
Herbal Combinations & Formulas (123 pgs.)
Herbal Home Health Care (135 pgs.)
Illustrations (62 pgs.)
Newsletters (817 pgs.)
Rejuvenation Through Elimination (15 pgs.)
The School of Natural Healing (842 pgs.)
Unpublished Works (541 pgs.)

The following books were written by Dr. Christopher's teacher.
Advance Course in Herbology - Dr. Edward Shook (380 pgs.)
Elementary Treatise in Herbology - Dr. Edward Shook (156 pgs.)

NOTE: ALL of the following pdf files (3900 pgs. total) are searchable.