The document outlines steps to calibrate the eyepiece micrometer of a microscope using a stage micrometer under different objective lenses. It describes calibrating the eyepiece micrometer under 3 objective lenses - 4X, 10X, and 40X - by using the stage micrometer and following numbered steps for each objective lens. The document is authored by S.Selvadurai.,M.Pharm.,MBA.,(Ph.D)., Associate Professor in the Department of Pharmacognosy.