The book contains a description of the Third Central Asian journey made by N.M. Przhevalsky in 1879-1880. He came out of the city of Zaysan at the head of a detachment of 13 people. Along the Urungu River through the Hami oasis and through the desert to the Sa-Jzheu oasis, through the Nan Shan Ranges to Tibet, and went into the Blue River Valley (Mur Usu). The Tibetan government did not want to let Przhevalsky into Lhasa, and the local population was so excited that Przhevalsky, crossing the Tang-La pass and being only 250 miles from Lhasa, was forced to return to Urga. Returning to Russia in 1881, Przhevalsky gave a description of his third trip.