"Bicycle Brake Cord -- As I have been for a long time in the habit of covering catgut with No. 25 copper wire for several bicycle firms, I presume they find this to answer best for the purpose. The gut is first twisted very tight and while in that condition wrapped round with the wire, so that it has the double effect of strengthening the gut and preventing it from wearing out. I remember thinking they were violincello strings, and marvelled where such a lot of those instruments went to. -- W.H. Davies"
