Cornell University Library · Forgotten Books
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| England's Mission | 978-0-243-51103-7 (0-243-51103-5) | 2018 |
| The Ethical Aspects of Evolution Regarded as the Parallel Growth of Opposite Tendencies | 978-1-112-16027-1 (1-112-16027-2) | 2009 |