A more advanced 100 square foot colored concrete patio installation costs homeowners between $713 and $933 on average, which includes $188 to $204 worth of materials and $525 to $728 worth of labor costs.
The Diaphragm or diaphragm control lever regulates the amount of light passing through the slide specimen on the microscope stage.
It contains a prism at the base of the tube that bends the light rays so they can enter the inclined tube. Coarse Adjustment Knob-The coarse adjustment knob located on the arm of the microscope moves the stage up and down to bring the specimen into focus.