| Diderot, Denis |
22 |
| Diodati, M. Octavien |
1 |
| Duff, James Grant |
1 |
| Exposition Universelle et Internationale de San Francisco |
2 |
| Faraday, Michael |
1 |
| Foster, William |
1 |
| Gore, G. |
1 |
| Great Britain. Challenger Office |
9 |
| Great Britain. Challenger Ofice |
8 |
| Guizot, M. |
1 |
| Guthrie, Peter |
1 |
| Helmholtz, H. |
2 |
| Hernandez, Francisco |
1 |