ELEMENTARY PHOTO-MICROGRAPHY. 13 



CHAPTER XII. Lantern Slide Making Frame 

 Testing Slides Rule for Finding Distance of 

 Lantern from Screen. 



GLOSSARY. 



APPENDIX. Rules for Finding Magnification, 

 Focus, and Extension Prices of Microscope 

 Objectives and Accessories Useful Books on 

 the Microscope ; on Optics Exposure Record 

 Book. 



LIST OF PLATES. 

 INDEX. 



