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POPULAR SCIENCE MONTHLY 



red, with hems of white at the bottom. No wonder this man complains 

 of 'poor' gas, while some learned friend, dropping in for an evening 

 cigar, explains that there is 'air in the pipes.' The one consolatory 

 reflection is that, at all events, the poor fellow had a good light to un- 

 dress by (Bio C). 



Exhibits 3 and 4 come from my own residence. Together they form 

 a 'before-taking' and 'after-taking' advertisement — not of medicine, 

 but of a gas governor. The fact that 1 am located at a considerable 



Exhibit 4. 



distance — several miles — from the works, and am supplied through a 

 main laid a number of years ago, when -the territory was sparsely 

 settled, enables me to present Exhibit 3. Comment on this record is 

 unnecessary. After securing this diagram I installed a governor and 

 set it at eleven tenths. Exhibit 4 shows what happened. I am now 

 doing for myself, and at my own expense, that which the gas company 

 fails to do for me. This governor, therefore, renders me almost entirely 

 independent of the gas company; and, in order to demonstrate more 

 clearly to what degree this independence extends, the gauge has been 



