422 
USEFUL BIRDS. 
The Destruction of Birds by the Elements in 1903-04. E.H. Forbush. 
Ibid., 1908, pp. 457-503. 
The Decrease of Certain Birds, and its Causes, with Suggestions for 
Bird Protection. E.H. Forbush. Jbid., 1904, pp. 429-543. 
No. 12 
No. 14 
No. 15 
No. 16 
No. 22 
No. 23 
No. 24 
No. 25 
Nature Leaflets. 
. Winter Birds at the Farm. E.H. Forbush. 1902. 
. Owl Friends. E.H. Forbush. 1903. 
. Bird Houses. E. H. Forbush. 1903. : 
. Our Friend the Chickadee. E. H. Forbush. 1903. 
. Hints for Out-door Bird Study. E.H. Forbush. I. How to 
identify Birds. 1904. ; 
. Ibid. II. How to find Birds. 1904. 
. Ibid. TI. How to approach Birds. 1904. 
. Ibid. IV. How to attract Birds. 1904. 
