The paper contains a short survey of the activities of the Forest Research Institute in Zvolen performed during 1968-1972 and is published at the occasion of the 75th anniversary of the Institute's foundation. The paper continues the previous work of the author (D. Zachar, K. Kovacsova, 1968) describing the development, organization and survey of activities especially during 1958-1967. In both papers a survey of the Institute's activities for 15 years (1958-1972) is comprised. The Institute was established by the foundation charter dated 31 December 1897, according to which a Central Research Station (Institute) was created at the Mining and Forestry Academy in B. Stiavnica, with four research stations situated at Ranger Schools. The organizational link with the Academy was severed in 1906. After 1919 the Institute was reorganized in the constitutional framework of Czechoslovakia. Yet its development was slow; a more intensive development of forestry research can be observed only since 1948. During 1948-1957 several laboratories were established with a relatively great number of staff (the increase in 10 years represented about 130 persons). During 1957-1959 all laboratories of forestry research were gradually included in one Forest Research Institute in Banska Stiavnica. Since 1960 the Institute was growing according to long-range plans of the Institute, in accordance with the conception of development of the in 1963 to Zvolen, where already since 1952 the College of Forestry and Woodworking Industries, the Institute for Forest Management, the Central Library for Forestry and Wood, the Forestry Museum and other organization of forestry and the woodworking industries were located. In this way better conditions were created for a close cooperation between different institutions of forestry. In organizational respect the Institute had a research and an operational component, and was divided further into 10 (since 1968 12) departments. From the 1-st of September 1972 the structure of the Institute was changed. The Institute is devided into 3 units, the research unit comprises 4 departments which consist of divisions. The organizational chart is shown on Fig. 7. A short characteristic of the organizational units follows.