Rick set up his microscope on the kitchen table and plugged in the substage illumination.
If it no longer occupies the centre of the field, alter the angle of the substage mirror until it does.
The shape of the aperture is a not unimportant point; it should be square to allow of free movement over the substage condenser.
Once she turned the substage mirror a bit to catch direct the light streaming in the window.
He set up the microscope and plugged in the substage light, then found a well slide and placed a drop of water on it.
Rick spread a small amount on a slide, switched on the substage light, and put the slide on the stage.
Remove the substage condenser and replace it by the dark ground condenser.
The substage condenser is a necessary part of the optical outfit.
Adjust the substage mirror so that the light is reflected upward.
It is held in a spring-sleeve and the substage can be raised and lowered by lateral screw, or may be swung to one side.