viU INTBODUOTOBY. 



lenses, a compound microscope, an opera-glass to observe distant 

 objects, such as birds and stars, a manual-training bench with its 

 equipment of tools, and a well-appointed school garden. 



, , For the right to reproduce the colored illustrations of the minerals, 

 insects, and bird's-nest, the publishers are indebted to Mr. W. A. Mumford, 

 Chicago, the owner of the copyright of these pictures. 



