Microscope - Base
Supports the microscope
Microscope - Substage light
Located at the base, the light passes directly upward through the microscope: light controls are located on the microscope base
Microscope - Stage
The platform the slide rests on while being viewed; the stage has a hole in it to permit light to pass through both it and the specimen.
Some microscopes have a stage equipped with spring clips; others have a clamp type mechanical stage with two adjustable knobs that control precise movement of the specimen.