Research on a Methodological Role of D.I. Mendeleyev's Scientific Work
Using the theory of the system approach and the main principles of methodology, the authors analyzed D. I. Mendeleyev's basic proceedings. The peculiarities of the approach used by the scientist have been revealed. It has been shown that D. I. Mendeleyev's research work plays an important role in the development of methodology of chemistry. The conclusion was drawn that despite the comparative novelty of the system approach D. I. Mendeleyev had used it much earlier in his practical activities.