Types of taiga. Installation of pipes at oil drilling, a fountain of oil. Meeting of the Siberian Branch of the USSR with the participation of Academician MA Lavrentiev, Sobolev, and other scientists. Scientists working in the department laboratories. Academician Lavrent'ev on vacation in the woods with his students in the laboratory during the test, "gidropushki", gives an interview (synchronous) of the Siberian Branch of the USSR.