inating Ob-jectives.—These are designed for the study of opaqueobjects with good reflecting surfaces, like the rulings onmetal bars and broken or polished and etched surfaces of metals employed inmicro-metallography. The light enters the side of the tube or objective andis reflected vertically… … CI I. /] MICROSi OIE AND Al CESSORIES 17 i; 32. Tube-length. — In the construction of microscopic objective-, thecorrections must be made for the formation of the image at a definite distance,or in other words the tube of the microscope on which the objective is to beused must have a definite…
Microscopy
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