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From the Riverside Worsted Mills, Providence, R. I. 



Providence, April 12, 1879. 

 Brush Electric Light Co., Boston: 



Gentlemen — In reply to your inquiries concerning our expe- 

 rience with the machines of your company with which we are 

 lighting our mill, we would say: We have in daily use the two 

 No. 7 Brush Electric Light Machines which we bought of you, 

 and we have ordered a third of the same size. Each machine 

 lights sixteen lamps. These give us perfect satisfaction, the 

 light being very steady and much better for our weavers to work 

 by than gas-light. Before the introduction of the electric light 

 we burned in our weaving room 230 gas burners, consuming 

 some 1,200 feet of gas per hour, which at the price we pay for 

 gas, $2.25 per M. less 8 per cent., amounted to $2.48 per hour. 

 We have now lighted the same room for some time with twenty 

 Brush lights, which cost us for carbons consumed, twenty cents 

 per hour (at the reduced price for carbons). This does not in- 

 clude the cost of power. We have not as yet indicated the 

 horse power of either machine, but think they cannot take over 

 14 to 15 horse power each. We are informed by the Merrimack 

 Manufacturing Co., of Lowell, Mass., who have a machine of 

 the same size as ours and running the same number of lights, 

 that their machine requires 13 86-100 horse power. 

 Truly yours, 



FEEDERICK CONDICT, Treasurer. 



From the Willimantic Thread Co., Willimantic, Conn. 



WiLLiMANTic, Conn., March 11, 1879. 

 Brush Electric Light Co., Boston: 



Gentlemen — The six-light electric machine which we put in 

 our Willimantic Mill is running to our satisfaction. We have 

 two lights in our winding room, 68 by 80 feet, and four in the 

 mule room, 68 by 200 feet, where we are spinning No. 140 cot- 

 ton. The entire cost is about equivalent to gas at $1 per thou- 



