CONTENTS vii 



3. Measuring angles of contact between liquid and solid surfaces 222 



4. Measuring dry masses by means of an interference microscope 226 



Chapter IX. Infra-red and Ultra-violet Microscopy 



1. Objectives of infra-red and ultra-violet microscopes 228 



2. Observing and recording infra-red and ultra-violet imagery 236 



3. Fluorescence 239 



Chapter X. Microspectroscopy and Microspectrophotometry 



1. Fundamentals of microspectroscopy and microspectrophotometry 242 



2. The object is illuminated in monochromatic light 243 



3. The object is illuminated in white light 254 



4. Microspectrophotometric measurements 255 



5. Causes of errors in microspectrophotometry 258 



6. Photometric eyepieces 260 



7. Fluorescence microspectrophotometry 263 



Chapter XI. Chemical Microscopy 



1. Introduction 267 



2. Hot stage and cold stage 267 



3. Calibrating the hot stage 270 



4. Determining the melting point 271 



5. Measuring the refraction index of a melted substance 273 



6. Kofler's contact method 274 



7. Temperature composition diagram of binary mixtures 279 



8. Application of fusion methods 282 



9. Characterizing and identifying fusible compounds 284 



Short bibliography 285 



Index 289 



