164 AYERS AND JOHNSON: DESTRUCTION OF BACTERIA 



It is also doubtful if the lamps could be made to compete suc- 

 cessfully with the present method of steaming milk bottles in order 

 to partially sterilize them. 



In conclusion, it must be stated that we have not intended to 

 make this work an exhaustive study of the application of the bac- 

 tericidal power of the ultraviolet rays. It is therefore possible 

 that better results may be obtained in the future by use of more 

 powerful lamps and different methods of exposing the milk. 



