Rare! Russian scientific publication of 1912 Name: Aurora Borealis (Polar Light). Author: A. Byalynitsky-Birula. Publisher: St. Petersburg, Imperial Academy of Sciences, 1912. Series: Notes of the Imperial Academy of Sciences, VIII series. Physical and mathematical department. Volume XXV, No3. Format: Extended format (34 x 23 cm), soft cover. Description: This publication presents the scientific results of observations of auroras made during the first Russian polar expedition of 1900-1901 under the direction of Baron E. V. Toll. The article includes 6 tables and 1 map. Features: Historical and scientific value, rare publication related to the study of the Arctic. The book (or article) entitled "Aurora Borealis" is devoted to scientific observations of the aurora borealis, made during the first Russian polar expedition of 1900-1901 under the leadership of Baron E. V. Toll. This work was published by the Imperial Academy of Sciences in St. Petersburg in 1912. The main topic of the publication is the study of auroras, their manifestations, characteristics and patterns. The author, A. Byalynitsky-Birul, analyzes the data collected during the wintering expedition in the area of Western Taimyr, on the raid of the Zarya vessel. The work includes tables with observations and a map, which makes the publication an important source for understanding natural phenomena in the Arctic. The book is a contribution to the development of geophysics, astronomy and meteorology of that time, demonstrating the scientific achievements of the Russian expedition in the Arctic. It can also be interesting from the point of view of the history of scientific research and polar expeditions.