This document provides instructions for the use and care of a compound light microscope. It describes the basic anatomy of a microscope, including the objectives and ocular lenses used to magnify specimens. It explains that total magnification is calculated by multiplying the objective and ocular magnifications. The document then provides a step-by-step guide for setting up the microscope and viewing a slide, including how to focus at different magnifications and use immersion oil. It stresses the importance of properly cleaning the microscope after use.