18 research outputs found
Preparation of the USSR for defense in the interwar period (1921–1941), taking into account the generalization of the experience of economic support of the first world war and civil war
Über Veränderungen der Alkalireserve und des Zuckergehalts in der Galle bei Einwirkung von verschiedenen physiologischen Reizmitteln
Plants of the First Terrestrial Ecosystems
© 2019, Pleiades Publishing, Ltd. Abstract: The preconditions of an ecosystem for and major phases of colonization of land by higher plants are considered. The most important finds of higher plants in pre-Silurian deposits are discussed. A new plant, Volkhoviella primitiva Naug., Gen. et sp. nov., from Ordovician deposits of Leningrad oblast is described. General questions of the early evolution of land vegetation are considered