Abstract Data on two cruises, made at long intervals, of each of two areas in the spruce region of the Northeast and offered here, show what has actually happened in the way of growth. The gain in the merchantable stand through growth in the smaller merchantable sizes that was expected from ocular observation, is not indicated by the data. The comparison, the authors feel, renders caution necessary in prophesying growth in this region, and suggests both the importance of basing estimates of growth on actual counts of growing stock and the necessity for more specific information on the areas of types if general estimates of growth are based on growth by types.
Coolidge et al. (Thu,) studied this question.