The Block-Line Method of Plantation Examination

The steadily increasing task of plantation examination has created a demand for a more reliahle and efficient method than the standard staking practice. Some officials have expressed doubts as to the accuracy of present estimates of plantation survival and have indicated the need of a method that will give a reliable mean together with its probable accuracy. The purpose of this paper is to describe a method which is practicable, usable for both survival and growth, and which at the same time meets ordinary statistical requirements. It has been tentatively designated the block-line method.