government regulations
Empress
fortifications
geography
map of the journey
maps
physical and political geography
travellers
Academy expeditions
Academy/Academies of Sciences
description of his travels
expedition, history of the
expeditions
Falck's expedition
Falk's works
Imperial Academy of Sciences
observations
travel accounts
Bukhara
Dzungaria
Russia
Russian Empire
Dashkova, Catherine Romanovna, Princess of the Russian Empire
Falck/Falk, Johan Peter