Scientists planning trips to the Soviet Union or other countries of Eastern Europe and who want to find out more about the regions they will visit may find it useful to contact the Information Center for American Travelers to the Soviet Union, a division of the Governmental Affairs Institute. The Center, which is located at 345 East 46 Street, New York 17, N.Y., offers brief orientation programs for individuals or groups en route to the USSR and Eastern Europe; it will also send on request a brochure of pertinent data and will answer specific questions.