IBP HANDBOOK No. 2 By P. J. Newbould The New University of Ulster.This methodological outline for estimating the primary production of forest and woodlands as part of I B P is based on preliminary documents circulate to more than seventy scientists directly concerned with such studies an incorporates many of their comments. (FIRST PUBLISHED 1967 Reprinted 1970 ) Coleraine, Co. Londonderry, N. Ireland