HALF- HOURS 



THE MICROSCOPE; 



BEING A POPULAR GUIDE TO THE USE OF THE MICROSCOPE AS 

 MEANS OF AMUSEMENT AND INSTRUCTION. 



BY EDWIN LANKESTER, M.D. 



ILLUSTEATED FEOM NATUEE, 



BY 



TUFFEN WEST. 



.A. 3ST IE "W IE X> I T I O IsT. 



With Chapter on the Polwriscope by F. Kitton. 



NEW YORK : 



G. P. PUTNAM'S SONS, 



FOUETH AVENUE AND TWENTY-THIED STEEET. 



1874. 



