3teu*Lw 





Vol. 4. No 1, 



DETROIT, MICHIGAN, JULY, 1907. 



Price 10 Cents 



Entered as second-class matter Api-il 27. 1907, at the Pest Office at Petroit. Michigan, under the act of Congress of March 3, 1879. 





A Hardwood Forest, Showing Good Specimens of Yellow Poplar. 

 (Courtesy of Forestry and Irrigation.) 



