CONTENTS. V 



CABE or THE MICBOSCOPE. . 



Should be Kept Covered ; Care of Objectives ; Precautions to be 

 Used when Corrosive Vapors and Liquids are Employed; To 

 Protect the Objectives from Vapors which Corrode Glass; Clean- 

 ing the Objectives ; Cleaning the Brass Work, - - 175 



COLLECTING OBJECTS. 



Where to Find Objects ; What to Look for; How to Capture Them ; 

 Nets; Bottle-Holders ; Spoons; Collecting Walking Cane ; Water 

 Strainer ; Wright's Collecting Bottle ; Aquaria for Microscopic 

 Objects; Dipping Tubes, -. - 177 



THE PBEPABATION AND EXAMINATION OF OBJECTS. 



Cutting Thin Sections of Soft Substances; Valentine's Knife; Sec- 

 tions of Wood and Bone; Improved Section Cutter; Sections of 

 Rock ; Knives ; Scissors ; Needles ; Dissecting Pans and Dishes ; 

 Dissecting Microscopes ; Separation of Deposits from Liquids; 

 Preparing Whole Insects; Feet, Eyes, Tongues, Wings, etc., of 

 Insects ; Use of Chemical Tests ; Liquids for Moistening Objects ; 

 Refractive Powers of Different Liquids; lod-Serum; Artificial 

 lod-Serum ; Covers for Keeping out Dust ; Errors in Microscopic 

 Observations, - - 187 



PBESEBVATTVE PBOCESSES. 



General Principles ; Preservative Media Canada Balsam, Solution 

 of Balsam, Colophony, Damar Medium. Glycerine, Glycerine 

 Jelly. Hantzsch's Fluid, Glycerine and Gum, Deane's Gelatine, 

 Alcohol, Thwaite's Fluid, Beale's Liquid, Goadby's Fluids, Pa- 

 cini's Fluid, Castor Oil ; General Rules for Applying Preservative 



Fluids, - - 198 



APPABATUS FOB MOUNTING OBJECTS. 



Slides; Covers; Cells; Turn-TablesPlain, Matthew's, Kinne's, 

 Cox's; Cards for Making Cells; Hot-Plate; Lamps; Retort 

 Stand; Centering Cards; Mounting Needles; Cover Forceps; 

 Slide Holder ; Water Bath ; Simple Form of Spring Clip, - 206 

 CEMENTS AND VABNISHES. 



General Rules for Using; Gold Size, Black Japan, Brunswick 

 Black, Shellac. Bell's Cement, Sealing Wax Varnish, Colored 

 Shellac, Damar Cement, Marine Glue, Liquid Glue, Dextrine, 221 



MOUNTING OBJECTS. 



Mounting Transparent Objects Dry ; Mounting in Balsam ; Mount- 

 ing in Liquids; Mounting of Whole Insects ; How to Get Rid of 

 Air-Bubbles ; Mounting Opaque Objects ; Wooden Cells ; Leather 

 Discs ; Pierce's Cell ; Prof, Smith's Wax Cell ; Scott's Metal Cell ; 

 Atwood's Hard Rubber Cell ; Dayton's Shellac Cell ; Deep Cells 

 of Litharge ; Chester's Method of Making Cells of Tin Foil, - 224 



