THE MICROSCOPE 



AND ITS LESSONS. 



A STORY OF THE INVISIBLE WORLD; 



WITH 



PICTORIAL DESCRIPTIONS OF ITS INHABITANTS. 



BY 



JAMES CROWTHER, 



AUTHOR OF "THE HORSES OF THE SCN," ETC. 



Wood section, magaified sixty-four times. Drawn from nature. See p. 265. 



LONDON: 



PUBLISHED BY GEORGE CAULDWELL, 



55, 56, & 60, OLD BAILEY, E.C. 



1891 



