Excerpt from A Field Test of Point-Sample Cruising In most tests that have shown good results in using wedge-prisms, marginal or doubtful trees have been carefully checked by measuring their diameter and distance from the sample point. However, the usual recommendation for extensive cruises is to tally such trees separately and add half of their total to the sample. Whether an optical illusion might cause the ratio of ins to outs to be other than 50-50 has never been checked so far as I know. In addition to testing techniques of application, a study of point-sampling should also provide information helpful in designing timber cruises to meet specified limits of accuracy. By relating coefficients of variation for point sampling to those for conventional plot procedures, the experience data from the older techniques can be made available for designing point-sample cruises. 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.