CONTENTS 



PAGES FIG. 



Introduction 1-5 1-3 



CHAPTER I 6-35 4-29 



The Microscope and Its Parts: Simple and compound micro- 

 scopes; Visual angle and apparent size of objects; Lenses; Con- 

 struction of images; Experiments with the simple microscope; 

 Compound microscope and objectives and oculars; Experiments 

 with the compound microscope. 



CHAPTER II 36-76 30-50 



Practical Work with the Parts of the Microscope: Focusing 

 experiments; Working distance; Lighting with dayUght; Light- 

 ing with artificial light; Artificial daylight with daylight glass; 

 Condensers or illuminators, and experiments with them; Dark- 

 ground illumination with low and with high powers. 



CHAPTER III 77-106 si-64 



Adjustable and Immersion Objectives; Binocular Micro' 

 scopes; Careof the Microscope and of the Eyes: Adjustable and 

 immersion objectives and experiments; Refraction and color 

 images; Binocular microscopes for low and for high powers; Care 

 of the microscope and of the eyes; Testing the microscope; 

 Laboratory and school microscopes; Markers and mechanical 

 stages; Standard sizes of the Royal Microscopical Society. 



CHAPTER IV ro7-i26 65-74 



Interpretation of Appearances Under the Microscope: Deter- 

 mination whether an object is under the microscope or the 

 appearance is due to dust, etc., on the ocular, etc.; Relative 

 position of objects; Air bubbles and oil globules; Velocity under 

 the microscope; Pedesis or Brownian movement; Inversion of 

 the microscopic image. 



vii 



