*>N GAS tIGHTS. 147 



thaf case not half will be used, and twice or three times a 

 week will be quite sufficient for making the gas. 



I have also left out entirely the expenses of a man, as 

 this will be seen to be quite unnecessary, so little time will be 

 required to make and attend it, if only used for lights. 



The apparatus too in this case will not cost more than 

 twenty or twenty-five pounds, so that I have allowed only 

 one pound live shillings for interest. And although I have 

 reckoned only twenty candles to be used in this statement, 

 and have calculated therefore on the saving of twenty; yet 

 twenty-five, or even more may be lighted, and at a very lit- 

 tle additional expense, as it can only be in a little more coal 

 being consumed ; so that, if I were to reckon, that twenty- 

 five or thirty candles were used, you see what a flattering 

 advantage would appear. But I am not desirous of paint- 

 ing the picture with glaring colours, the saving in this state- 

 ment is sufficient to satisfy every mau, who is interested in 

 it, of the great utility of the thing. 



There is one thing more I would advance in its favour. It Its disagreeable 

 has been objected to by several, on occount of its disagreea- sme ! 1 no * 

 ble smell if any of the gas escape, or if the gas have not 

 Hbeen properly purified. Now, Sir, the very thing they ob- 

 ject to is an advantage. I would ask any medical man, whe- 

 ther the smell of burnt tar be injurious to the constitution. 

 Why burn pitch and tar, to destroy contagion, if they have 

 not the power of doing it,? The gas will be found, instead but conducive 

 of destroying health, to promote it, even in the last stages to health. 

 of consumption. It is a fac;t, the smoak of the coal fires in all 

 large manufacturing town^, instead of injuring the health of 

 the inhabitants, is goodfoivit; for the contagious diseases 

 are hardly ever known to appear, much less to increase ii| 

 them. And how can we account for the prevention of these 

 diseases, and for their not making sad havoc and devastation, 

 in places, to all appearance so well calculated for their seat; 

 crowded manufactories, crowded streets, filthy drunken 

 workmen, the whole town at times quite enveloped with 

 smoke ; if we do not attribute it to its real and true cause, 

 the coal smoke ? 



The introduction of the gas into manufactories will be 

 found still more useful and beneficial, as it will destroy the 



L 2 inconvenience 



