Contents ix 



Ascaris (Sections), 123; Directions for Orienting Serial Sections, 123; 

 Orientation of Objects in the Imbedding Mass, 124; Human Em- 

 bryos, 126. 



CHAPTER XVII. RECONSTRUCTION OF OBJECTS FROM SECTIONS . . . 127 

 Reconstruction in Wax, 127; Geometrical Reconstruction, 129. 



APPENDIX A. THE MICROSCOPE AND ITS OPTICAL PRINCIPLES . . . 133 

 Optical Principles, 133; Images, 135; The Simple Microscope, 136; 

 The Compound Microscope, 137; Defects in the Image, 138; Nomen- 

 clature or Rating of Objectives and Oculars, 144; Some Common 

 Microscopical Terms and Appliances (Alphabetically Arranged), 145; 

 Manipulation of the Compound Microscope, 157. 



APPENDIX B. SOME STANDARD REAGENTS AND THEIR USES .... 161 

 Fixing and Hardening Agents, 161; Stains, 170; Normal or Indif- 

 ferent Fluids, 187; Dissociating Fluids, 187; Decalcifying Fluids, 189. 



APPENDIX C. TABLE OF TISSUES AND ORGANS WITH METHODS OF PREPA- 

 RATION , . . 190 



APPENDIX D. PREPARATION OF MICROSCOPIC MATERIAL FOR A COURSE 



IN GENERAL ZOOLOGY , , , 215 



APPENDIX E. TABLE OF EQUIVALENT WEIGHTS AND MEASURES , . , 227 



