 |
| Mendeleev playing chess with Kuindzhi in 1882 |
|
| Mendeleev in a conference in 1897 |
|
| Dmitri Mendeleev in 1899 |
 |
| Mendeleev and Konovalov on opening foundation of new University laboratory 1902 |
|
| Dmitri Mendeleev in 1904 |