Old Age Deferred The causes of old age and its postponement by hygienic and therapeutic measures
CHAPTER LVI.
ON THE PREVENTION OF PREMATURE OLD AGE AND ON THE 434 TREATMENT OF OLD AGE BY ANIMAL EXTRACTS
Old Age Deferred The causes of old age and its postponement by hygienic and therapeutic measures
ON THE PREVENTION OF PREMATURE OLD AGE AND ON THE 434 TREATMENT OF OLD AGE BY ANIMAL EXTRACTS