xiv CONTENTS 



APPENDIX 



PBGE 



Formulae for Reagents and Stains : 224 



Table of Magnifications with Different Combinations of Objectives 



and Oculars 230 



Data Relative to Objectives of the Different Powers 230 



Numerical Aperture 230 



Working Distance 230 



Diameter of Real Field 230 



Initial Magnificaton 230 



Cover-slips; Thickness, Sizes, Shapes and Designations. 231 



Approximate Number of Cover-slips to the Ounce 231 



Reference Books. . , . 232 



