TABLE OF CONTENTS. 

 CHAPTER III. 



ACCESSORY APPARATUS. 



PAGE 



Amplifier, 86 



Draw-tube, 87 



Lister's Erector, .... 87 

 Micro-Megascope . . 88 

 Nachet's Erecting Prism, 88 

 Micro-Spectroscope, . 89 

 Micrometric Apparatus, . 92 

 Goniometer, ... 95 

 Diaphragm Eye-piece and Indica- 

 tor 95 



Camera Lucida and other Drawing 



Apparatus, 96 



Nose-piece, 99 



Finders, 99 



Diaphragms, 101 



Achromatic Condensers, . . . 102 

 Webster Condenser, . . .103 

 Oblique Illuminators, . . . 104 

 Amici's Prism, ..... 106 

 Black-Ground Illuminators, . . 106 



PAGE 

 109 

 110 

 111 



113 



Wenham's Reflex Illuminator, 

 Light Modifiers, .... 

 Polarizing Apparatus, 

 Swift's Combination Sub-Stage, 

 Side Illuminators for Opaque Ob- 

 jects, 114 



Parabolic Speculum, . . .lift 



Lieberkiihn, 117 



Vertical Illuminators, . . .118 

 Stephenson's Safety Stage, . . 120 

 Stage-Forceps and Vice, . . . 120 

 Disk-holder and Object-holder, . 121 



Glass Stage-Plate 122 



Growing Slides, .... 122 

 Aquatic Box and Cells, . . . 123 

 Zoophyte-Trough, . . . .125 

 Compressors, ..... 126 

 Dipping Tubes, . . . .127 



Glass Syringe, 128 



Forceps, 128 



CHAPTER IV. 



MANAGEMENT OF THE MICROSCOPE. 



Table and Cabinet, . 

 Daylight and Lamps, 

 Position of Light, . 

 Care of the Eyes, 

 Care of the Microscope, 

 General Arrangements, 

 Focal Adjustment, . 

 Adjustment of Object-Glass, 



130 

 131 

 133 

 134 

 134 

 135 

 137 

 139 



Arrangement for Transparent Ob- 

 jects, 141 



Arrangement for Opaque Objects, . 147 

 Errors of Interpretation, . . 150 

 Effects of Diffraction, . . .154 

 Relative Qualities of Objectives, .161 



Test-Objects, 165 



Determination of Magnifying Power, 173 



CHAPTER V. 



PREPARATION, MOUNTING, AND COLLECTING OP OBJECTS. 



Materials, Instruments, and Appli- 

 ances, . . . . . 175 

 Glass Slides, . . . .175 

 Thin Glass, . . . .176 

 Varnishes and Cements, . . 178 

 Cells for Mounting Objects, . 179 

 Wooden Slides for Opaque Ob- 

 jects, 183 



Turn-Table, . . . .184 

 Mounting Plate and Water 



Bath, 185 



Slider-Forceps, Spring-Clip, and 



Spring-Press, .... 185 

 Mounting Instrument, . .186 

 Dissecting Apparatus,' . . 186 

 Microtomes and Section-cut- 

 ting, 188 



Preparation and Mounting of Ob- 

 jects, 194 



Imbedding Processes, . . 194 

 Grinding and Polishing Sec- 

 tions of Hard Substances . 196 

 Decalcifying Process, . . 201 

 Hardening of Animal Substan- 

 ces, 202 



Staining Processes, . . . 204 

 Chemical Testing, . . .208 

 Preservative Media, . . .209 

 Mounting Thin Sections, . . 212 

 Mounting in Canada Balsam, . 214 

 Mounting Objects in Cells, . 215 

 Labelling and Preserving of Ob- 

 jects, 218 



Collection of Objects, . . .219 



