PHYSIOLOGY FOE THE LABOEATOEY, 



i. 



GENERAL DIRECTIONS. 



THE COMPOUND MICROSCOPE. 



IN studying the various parts of the human body, we 

 need to magnify some of them in order to see their struc- 

 ture. To do this, we shall need to use a compound 

 microscope. But, in the first place, it would be well to 

 study the microscope and learn how to use it properly. 



A. The Parts of the Compound Microscope. 



The parts of the compound microscope are the stand, the 

 objectives, and the eyepieces. 



I. THE STAND. 



The stand is the largest part of the microscope and 

 includes all except the objectives and the eyepieces. It 

 has several divisions : 



a. The foot. The foot is the horseshoe-shaped part on 

 which the rest of the microscope stands (Fig. 1, a). 



b. The pillar. This is the vertical column that is fas- 

 tened to the base (Fig. 1, b). 



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