14 CONTENT?. 



CHAPTER VI. 



Page 



A Description of the Achromatic Microscope, together with 

 its Apparatus, and the mode of using it : — 



Round Stand Microscope — Solid Tripod -stand Microscope — 

 On selecting Magnifying Powers — Candle- holder, Shade, and 

 Condenser — Spring Double-Stage — Moveable Stages — Spring 

 Phial-Holder — Polarizing Microscope — Apparatus for Dis- 

 secting — Simple Lenses mounted in imitation of Achromatics 

 — Garden Clamp for the Microscope — Steadying Rods — Camera 

 Lucida, for Drawing— Micrometer Eye-pieces— Method of 

 Viewing Moveable Fluids in the Cavities of Crystals — Concave 

 Specula, Silver Cups, &c. — Stops, or Diaphragms — On View- 

 ing Transparent Objects by Daylight — On Viewing Bodies by 

 Intermitting Light — Black Ground Illumination for Transpa- 

 rent Objects — On Viewing Opaque Bodies by Oblique Reflected 

 Light — Method of determining the Forms of Minute Bodies — 

 On Viewing the Currents in Fluids during Evaporation 85 



CHAPTER VII. 



Practical Remarks on Microscopes for viewing and drawing 

 Aquatic Larvae, &c. — By C. R. Goring, M.D 146 



CHAPTER VIII. 



Whether there is a best possible way of constructing the 

 Stand, or Mounting, &.c. of Microscopes (the specific 

 purpose or purposes to which they are to be applied 

 being first determined) — By C. R. Goring, M.D 150 



CHAPTER IX. 



Description of Dr. Goring's Operative Aplanatic Engiscope 168 



