- How to Prolong Life
- How to Prolong Life: An Inquiry into the Cause of Old Age and Natural Death Showing the Diet and Agents Best Adapted for a Lengthened Prolongation of Human Life on Earth
- The Source Of The Accumulations Which Cause Old Age And Natural Death
- Diet in Composition and Quantity as Best Adapted to a Prolonged Existence
- How to Prolong Life: An Inquiry into the Cause of Old Age and Natural Death Showing the Diet and Agents Best Adapted for a Lengthened Prolongation of Human Life on Earth