at the center of his scientific interest; later he started researching plates. In 1915, Galerkin published an article in which he put forward an idea of an approximate method for differential equations, in particular boundary value problems. He applied his method to a big number of pivot and plate analysis problems. Sometime before, I.G.Bubnov developed a similar approach for the variational problem solution, which he interpreted as a variant of the Ritz method algorithm. The distinguishing features of Galerkin's method were the following: he did not associate the method, developed by him, with any variational problem direct solution, but considered it to be common for solving differential equations. He interpreted it, using the probable displacements principle. These ideas proved to be very productive, not only in structural mechanics but for mathematical physics at large. The Galerkin method (or Bubnov-Galerkin method) with Galerkin's (or "weak") differential equations problem statement form are known all over the world. Today, they provide a foundation for algorithms in the fields of mechanics, thermodynamics, electromagnetism, hydrodynamics, and many others. In January 1919, Galerkin became a professor in the 2nd (formerly Women's) Polytechnical Institute, remaining a teacher of structural mechanics in the 1st Polytechnical Institute (at that time the Polytechnical Institute was named so) mechanical department. In March 1920, a professor chair in structural mechanics was established at the department, and Boris Grigoryevich won it in a competition. In the summer of 1921, S.P. Belzetskiy, a famous scientist in the field of structural mechanics and theory of elasticity, who was holding a similar chair at the civil engineering faculty, emigrated to Poland. Galerkin took part in a competition for his chair and at the beginning of 1922, he left the mechanical faculty for the civil engineering faculty, which was nearer to him in his scientific and engineering activities. From 1917 to 1919, Galerkin published a series of works on rectangular and triangular plates curving in scientific periodicals and in the "Russian Academy of Sciences Transactions". Later he took a break from publications, and only in 1922 he began publishing again, but only in foreign magazines (in the Soviet Union there was not enough paper for scientific literature). In December 1923, Galerkin was elected dean of the Polytechnical Institutes' civil engineering faculty. It happened during a very important period of the institute's history, when a group of deans resigned from their posts, protesting from the unceremonious intervention of