| Date | Person | Description |
|---|---|---|
| Camel, Georg Joseph | Occupied himself with botany, pharmacy | |
| Cibot, Pierre-Martial | Occupied himself with astronomy, mechanics, medicine, chemistry, botany, geology, mineralogy, zoology, Chinese writing system | |
| Clavera, Josep Francesc | Studied medicine, botany, surgery | |
| Coll, Martin | Occupied himself with medicine, botany | |
| 1808 – 1820 | Condrau, Jakub | Teacher of physics, mechanics, botany, zoology, higher mathematics in Polotsk |
| d'Incarville, Pierre | Occupied himself with botany | |
| Lippay, János | Occupied himself with botany, horticulture, agronomy | |
| de Loureiro, João | Occupied himself with botany, medical botany | |
| Pickel, Ignaz | Occupied himself with astronomy, meteorology, forestry, topography, vehicular dynamics | |
| Soares, Diogo | Occupied himself with astronomy, cartography, geography, natural sciences, botany, topography, fieldwork | |
| Termeyer, Ramón María | Occupied himself with physics, agriculture, botany, entomology |