10 INTBOD UCTOR Y. 



PKACTICAL STUDY.* 



A. THE PAKTS OF THE MICROSCOPE. 



a. The Stand. 



1. Stage. 



2. Mirror. 



3. Diaphragms. 



4. Coarse and fine Adjustments. 



6. The Optical Apparatus. 



1. Objective. 



2. Ocular or Eye-piece. 



3. Draw-tube. 



B. THE USE or THE MICROSCOPE. 



1. Illuminating. 



2. Focussing. 



3. Camera lucida. 



4. Measurements by the camera and the stage micrometer. 



5. The value of binocular vision. 



C. THE EXAMINATION AND SKETCHING OF VARIOUS OBJECTS AS PRACTICE. 



D. SIMPLE METHODS OF TEASING, MOUNTING, AND STAINING. 



E. THE PRINCIPLES OF PHOTO-MICROGRAPHY. 



* Since a knowledge of the microscope is an indispensable preliminary to 

 the laboratory work, the student may now conveniently learn something of its 

 use. 



