121 



third the holes closed, or --I holes open. Burner No. IV had 24 holes and 

 almost all the outside air cut off. No. V was a combination of Nos. 1 

 and III. From the curve we see that with 13.6 candle-power gas (stand- 

 ard tip) No. II gives 14.2 candle-power, No. Ill gives 1">.<">. No. I gives 

 It! candle-power, and No. IV gives 16.4 candle-power. 



If by simply manipulating the burner 13. (J candle-power gas can be 

 raised to 10.4 candle-power, or 20 per cent., it is high time that, come 

 definite and authoritative action is taken to define the standards for gas 

 measurement. 



