TABLE OF CONTENTS. 



PART L 

 INTRODUCTION. " 



PAGE 



APPARATUS REQUIRED . . . . . i 



PRELIMINARY PREPARATION OF TISSUES ... 3 



PART II. 

 THE MICROSCOPE. 



FUNDAMENTAL PRINCIPLES . ... . .8 



LENSES ........ n 



THEORY OF THE SIMPLE MICROSCOPE 16 



THEORY OF THE COMPOUND MICROSCOPE . . *7 



FAULTS OF A LENS . . . . .19 



OPTICAL PARTS OF THE COMPOUND MICROSCOPE . . 22 



MECHANICAL PARTS OF THE COMPOUND MICROSCOPE . . 30 



DIFFERENT FORMS OF MICROSCOPES . . . 33 



ACCESSORY APPARATUS FOR ILLUMINATION . . .36 



METHOD OF TESTING THE MICROSCOPE . -39 



METHOD OF WORKING WITH THE MICROSCOPE . . 40 



PREPARATION OF A SIMPLE OBJECT . . . .41 



DESCRIPTION OF THE OBJECT . . , . . 41 



DELINEATION OF THE OBJECT ..... 43 



ESTIMATION OF THE MAGNIFYING POWER OF THE MICROSCOPE 46 

 ESTIMATION OF THE SIZE OF AN OBJECT . . .48 



