NATURE-STUDY 



A MANUAL FOR TEACHERS 

 AND STUDENTS 



BY 



FREDERICK L. HOLTZ, A.M. 



Head of Departtiteni of Nature -Study, Brooklyn Training School for Teachers, New 



York City. Formerly Head of Departincfit of Biology and Nature- 



Stztdy, State Normal School, Mankato, Minn. 



ILLUSTRA TED 



NEW YORK 



CHARLES SCRIBNER'S SONS 



1909 



