The prolongation of life; optimistic studies

The prolongation of life; optimistic studies. The investigation of old age.--Longevity in the animal kingdom.--Investigations on natural death.--Should we try to prolong human life?--Physical rudiments in man.--Some points in the history of social animals.--Pessimism and optimism.--Goethe and Faust.--Science and morality. 380 Pages.