HALF-HOURS 



WITH 



THE MICKOSCOPE: 



A POPULAR GUIDE TO THE USE OF THE MICKOSCOPE 

 AS A MEANS OF AMUSEMENT AND INSTRUCTION. 



BY 



EDWIN LANKESTER, M.D. 



SEVENTEENTH EDITION. 



LONDON: 

 W. H. ALLEN & CO., 13 WATERLOO PLACE. S.W. 



1890. 



LIBRARY 



UNIVERSITY OF CALIFORNIA 

 DAVIS 



