Monograph . - Moscow, Leningrad: Publishing House of the USSR Academy of Sciences, 1949. - 92 s. On the morning of June 30, 1908 . In the Yenisei taiga, in the basin of the river Podkamennaya Tunguska fell giant meteorite Having a huge initial mass and a very significant geocentric velocity, it crashed into the Earth's surface. The result was an explosion of tremendous force. The blast wave was torn from the root and felled in places by a continuous decking of age-old taiga trees .. Inflammated gases for tens of kilometers burned all vegetation on the surface of the earth . Impacts and rumblings spread a thousand kilometers from the site of the explosion. There was a shaking of the soil, recorded seismographs of many observatories; around the entire globe twice bypassed by the air wave. At the time of the fall of the meteorite in many settlements of Central Siberia, in space up to 600 - 1000 km in radius, residents observed a flight through the sky of a fiery body (bolide) In the next few days, phenomenal light nights and powerful luminous clouds were observed in the middle latitudes up to the western tip of Europe. The atmosphere of the Earth, in which a huge amount of meteoric matter was sprayed, was noticeably clouded. The purpose of this book is to acquaint researchers, as well as a wide range of people interested in the Tunguska meteorite, with this exceptional phenomenon of nature and to promote further comprehensive study of it. (May 22, 1949 .) , E. L. The crooks,