Vlll PREFACE 



bomidless possibilities, a freshness of spirit that is in 

 itself the most potent factor in education, a devotion that 

 inspires new contributions to the unlimited science of 

 teaching. 



This book is such a contribution, and I am sure it will 

 be a great help to many teachers who are struggling Avith 

 the problem of Nature Study. 



FRANCIS W. PARKER. 



Chicago, October 20, 1897. 



