[D8835ACU], Letter from Samuel Insull to Thomas Alva Edison, May 4th, 1888



"I have your favor of May 2nd., and am glad that you have got your insulation to the point where you think it is so thoroughly good. There is one thing, however, that I think you are overlooking. You can take an insulation which is apparently non-inflammable, put it on the wire, and then wind that wire with a small amount of cotton, and the insulation under test will not produce any flame. Take this same insulation and use it in connection with the amount of cotton winding and braiding that you are compelled to put on the wire in order to amek it look well and saleable, and the result is often very different. I know this from our actual experience here. What I think is important for us, is that we should get a small quantity of this new insulation of yours, and fix you up some samples for testing, the samples being built in the same manner that we would have to build a wire for actual business. ### I cannot impress upon you too strongly the necessity of our deciiding on something right away. I know the wire that we last sent you is far better than any wire at present in the market. If you have something which is very much better we want it immediately. What is absolutely necessary is an immediate decision as to House Wire, or else we shall lose this season's trade. ### I shall talk to you fully about this when I see you Sunday."








Folder Set



[D8835ACU], Letter from Samuel Insull to Thomas Alva Edison, May 4th, 1888

Microfilm ID



Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University