Additional files [RJEE Vol. 3 (1). 2018 – 2]

• Fig. 1. The territory of the Upper Kama region, the Northern Urals and the location of the salt plants in the middle of the 19th century
• Fig. 2. The Dedyukhin factory in the early 20th century
• Fig. 3. Saline pipe of the beginning of 20th century in the vicinity of Solikamsk
• Fig. 4. The map of rivers along which the firewood and timber for salt industry were rafted in 1835