I 



CONTENTS 



Page 



Preface vii 



Introduction 1 



CHAPTER I 

 Use of the Hand Magnifier 14 



CHAPTER II 

 Use of the Compound Microscope 26 



CHAPTER III 

 The Twin-objectfv^e Binocular 37 



CHAPTER IV 

 The Monobjective Binocular 46 



CHAPTER V 

 The Monocular Microscope 55 



CHAPTER VI 

 The Routine Microscope 60 



CHAPTER VII 



Illumination 66 



CHAPTER VIII 

 Light Filters and Screens 75 



CHAPTER IX 

 The Condenser 80 



CHAPTER X 



The Object 99 



ix 



-^// ^ oZ 



