Excerpt from The Importance of Seed Characteristics in the Natural Reproduction of Coniferous Forests Periodicity Of the seed years is variable; so much so that it can not be considered in any practical application in planning for future forest work. It must, however, be considered in determining when the latest heavy crop Of seed was produced. The forests produce seed sometimes annually and sometimes at periods of two or three years or even more. It is sufficient to know for the purposes of management, whether the latest crop was a sparse, medium, or heavy one. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.