keyword: Longevity – 12 free books.
Harrison J. Kell and Jonas Lang
The Bacillus of Long Life A Manual of the Preparation and Souring of Milk for Dietary Purposes, Together with an Historical Account of the Use of Fermented Milks, from the Earliest Times to the Present Day, and Their Wonderful Effect in the Prolonging of Human Existence
Loudon M Douglas
Alexey Moskalev and Elena G. Pasyukova