| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Notes on Microscopical Technique for Zoologists | 978-0-521-09213-5 (0-521-09213-2) | 1959 |
| Relations Between Sciences | 978-0-521-05909-1 (0-521-05909-7) | 1968 |
| The Relations Between the Sciences | 978-0-521-14815-3 (0-521-14815-4) | 2010 |