48 BULLETIN 1373 ? U, S. DEPARTMENT OF AGRICULTURE 
CONCLUSIONS 
Dust collection in grain elevators may not prevent explosions, but 
it will keep a small dust ignition from developing into a disastrous 
explosion. As a result of experiments with special laboratory equip- 
ment, the Bureau of Chemistry has designed new dust-handling 
equipment, which should meet all objections to the installation of 
such systems on the ground that they affect the weight of the grain. 
Eecommendations for the installation of the improved dust-collecting 
equipment are based on a survey of some of the principal grain ele- 
vators of the United States, which indicated that it would be possible 
to adapt the new equipment to the larger grain-handling plants of all 
types. 
This bulletin is a contribution from 
\au of Chemistry—. C. A. Browne, Chief. 
of Development Work _. r _DAViD J n.neer in Charge, 
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