MENDELEEV, DMITRI IVANOVICH. Polozheniya, izbrannya dlya zashchishcheniya na stepen' magistra khimii. [Theses selected to support a master's degree in chemistry]. St. Petersburg, 1856. 8vo, self-wrappers and later back strip, minor soiling to last page, minor wear to upper right corner of title. FIRST EDITION, of the chemical theses on the structure of silicon compounds defended by Mendeleev for his Master's degree at the University of St. Petersburg.