ADVANCED MANIPULATION. 



Dry-Adjustable Objectives ; Immersion-Adjustable Objectives ; 

 Test-Plate; Immersion Objectives on Test-Plate; Photo- 

 Micrography, ------ PAGES 74-89. 



TO SELECT A MICROSCOPE. 

 Stands ; Objectives and Eye-Pieces ; Accessories, 



PAGES 90-101. 



SUB-STAGE ILLUMINATION. 



Mirror ; Abbe Condenser ; Centering ; To Focus Condenser ; 

 Intensity of Light, PAGES 102-106. 



CARE OF A MICROSCOPE. 



To Take Care of a Stand ; To Take Cafe of Objectives and 

 Eye-Pieces, PAGES 107-110. 



APPENDIX. 

 Considerations in Testing Objectives, - PAGES 111-118. 



