B.S. 19273* Field of heading rice in 
which ducks were doing damage* Smoke near 
center marks exploding duck bonib. (Sue 
Hero Rice). Bismark Harden Ranch, Maxwell, 
California. 
September 7, 1918. 
* * ' • 
k Vti* T ' 
1 B.S. 19271. Method of setting mortars 
for firing duck bombs. Maxwell, California, 
September 7 , 1918. 
