Having started his biogeochemical studies in 1916, V.I. Vernadsky revealed that the generally accepted opinion about the origin of life from inert matter had no scientific sources. But all data of biology and paleontology indicate that all life comes from life (Francesco Redi’s principle). Vernadsky found convincing evidence of biogenesis in the state of biological space–time, which allowed him to describe the biosphere as a planetary shell, actually forming other geospheres. Vernadsky’s concept of the planetary role of living matter is currently gaining overriding and fundamental importance for all Earth sciences.

The article analyzes a collection of minerals and rocks compiled in 1911 in Yekaterinburg city in the mineralogical workshop of the Commission for the Dissemination of Natural Science Knowledge of the Ural Society of Natural Science Lovers, stored in the Museum of Scientific Heritage (Ulan-Ude city). It includes both material (stone samples) and written sources (handwritten and printed). It contains information on the history of science, education and museum work in our country in the first decades of the 20th century. The collection was compiled according to J.D. Dana’s mineralogical systematics, typical for museum practice of that period. Its geography covers mainly the Southern Urals, but individual samples were collected in other regions of the Russian Empire.
The collection box contains its catalog, as well as scraps of the newspaper “Russkoye Slovo” and a fragment of a note of 1911, confirming the dating of the collection. The autograph on the catalogue belongs to Nadezhda O. Sharakshinova, a famous folklorist, through whose family the collection came to Buryatia. A second autograph was presumably left by the Yekaterinburg merchant Pyotr I. Yarinsky (~1868–?).
The educational mineral collections of the Ural Society of Natural Science Lovers were in demand by educational institutions across the country in the first decades of the 20th century. This activity is presented in sufficient detail in archival documents and research works. However, very few such educational aids have survived in museum collections. For the Museum of Scientific Heritage, the collection is an opportunity to expand the mineral diversity and geography of its collection; a document that stands out for its historical, scientific and memorial value.

The article is devoted to the activities of the famous zoogeographer and ornithologist M.A. Menzbier as rector of Moscow University, which he headed during the revolutionary upheavals of 1917–1918. It considers the rector’s attempts to lead the university while remaining faithful to the principles of academicism in the conditions of destruction and breakdown of all public life.

In the year of the 150^th anniversary of the famous Russian scientist Vladimir A. Barykin (1874–1939), an attempt is made to reconstruct the initial period of his scientific activity. Based on the documents from the State Archive of the Russian Federation and published sources, the pre-revolutionary stage in the life and work of V.A. Barykin is considered. The professional path of the scientist, his first scientific research, as well as participation in the Russian-Japanese and World War I are recreated. And although the flourishing of his scientific and organizational activities took place in the 1920s and 1930s, the pre-revolutionary period of his life was extremely busy with expeditions and research, becoming significant for the formation of a professional scientist and the definition of those research areas that he would develop later. The fruitful scientific activity of the scientist was interrupted in 1938, when he was arrested, and in 1939 he was shot during the repressions. Despite the rehabilitation of V.A. Barykin in 1955, no detailed publications about his life and scientific activity have appeared. This article attempts to fill in this research gap and honor the memory of the prominent Russian scientist in his jubilee year.

The article presents an analysis of the exhibition activities of the Earth Science Museum of Moscow State University as an important component of scientific and educational work, significantly expanding educational and outreach activities. In accordance with the development of science and the socio-political situation in our country and the world, the topics of exhibitions, places and methods of their holding changed. At the same time, they reflected the current aspects of the 270-year history of Moscow University as if in a mirror.

Based on the bio-bibliographic essays by Konstantin I. Meyer (1881–1965), head of the Chair of Morphology and Systematics of Higher Plants (1929–1931 and 1938–1963) and director of the Botanical Garden of Moscow University (1940–1948), the article traces the formation evolution of the Moscow School of Plant Morphologists, founded by Ivan N. Gorozhankin, who headed the Chair of Plant Morphology and Systematics (1875–1904) and the Botanical Garden of Moscow University (1874–1902). The diversification of scientific issues in line with the comparative morphological research direction developed by this scientific school in Russian botany is shown on the basis of the works of Gorozhankin’s most famous students. 2024 marks the 120th anniversary of the death of I.N. Gorozhankin (1848–1904) and the 160th anniversary of the birth of Mikhail I. Golenkin (1864–1941), his successor at the chair and in the Botanical Garden.

New data on the placoderm fish Plourdosteus livonicus (Eastman, 1896) from the Lower Frasnian deposits of the Mikhaylovsky Mine in the Kursk Region is described. These remains are currently housed at the Earth Science Museum of Lomonosov Moscow State University. The medio-dorsal plate from this locality allows reconstructing its form and proportion, as also early unknown anterior division of the bone. Only small fragments of medio-dorsal plates were formerly described and figured for P. livonicus from this and other localities in European Russia. So, the new data from the Mikhaylovsky Mine adds to the morphology information of this species. The medio-dorsals are of diagnostic significance and distinguish in the plourdosteids. The specimen from the Earth Science Museum’s collection is compared with the medio-dorsal plates of other Frasnian Plourdosteus species from the East-European platform.

Maria P. Nagibina (née Tsybulskaya) (1878–1943) was a Russian botanist, teacher, local historian, public figure, science organizer and popularizer. She was one of the first women in Russia who received higher education. She was the organizer of the first in our country scientific biological station of MSNS (Moscow Society of Natural Scientists) (1919–1925, v. Staroe Pershino). Being an employee of the Botanical Garden of Moscow University (1904–1917 and 1926–1943), she was engaged in plant growing, selection of domestic varieties of ornamental plants; she organized their collections and exhibitions.