168 Proceedings of Indiana Academy of Science 
the increased removal of waste and poisonous substances from the body, 
the animal begins to recover. When the ozonized air is started, it 
passes first into a bottle which contains a rather large amount of foul 
gases. Then, unless the flow rate is considerable, very little ozone will 
reach the second bottle. To make a fair test, ozonized air should be 
drawn directly into each bottle and the time required for recovery 
noted. 
SUMMARY. 
Mice which have been poisoned more or less badly by their own 
exhalations may be brought back to their usual activity by ozone in 
concentrations estimated as from 1 to 10 parts per million. 
Purdue University. 
