HOW TO USE 



THE 



MICROSCOPE 



BEING 



PRACTICAL HINTS ON THE SELECTION AND 

 USE OF THAT INSTRUMENT, 



INTENDED FOR BEGHsTKEES. 



' 'B'sr rTO 



: f 



EDITOR OF THE "AMERICAN JOURNAL OP MICROSCOPY.' 



SIXTH EDITION. 



THOROUGHLY REVISED AND GREATLY ENLARGED, 



Illustrated with Eight Plates and numerous Figures in the Text. 



NEW YORK: 



THE INDUSTRIAL PUBLICATION COMPANY. 



1890. 



COPYRIGHT SECURED. 



