For certain measurement it is found more convenient to
provide sliding motion to the
microscope tube across the stage, in addition to all other usual movements.
(This
microscope is very useful in Newton’s ring experiment and graph reading etc). A
sliding carriage is fitted on the
top carriage which moves of the right angle to the
horizontal motion by means of rack and pinion. This motion is also
graduated in
millimeters having vernier reading of 0.1 mm. Supplied in a superior quality
wooden
box.