 A. Polkanov (1946—1947) was appointed the director, but had to resign in 1947 because of poor health, ceding the position to I. I. Gorsky (1947—1952).In 1948 the Industry and Economics Section was split into Economics Section and Laboratory of Non-metalliferous Minerals, and the Forest Laboratory was organized to be transformed into the Forest Section in the following year.Later on, the laboratories of parasitology and animal farming, and the White Sea Biological Research Station were set up.