THE STORY OF ARTIFICIAL SILK tion. He received a Council medal and a special letter of praise from the jurors. Queen Victoria had declined all offers of gifts from the exhibitors, but she made two exceptions. One of the exceptions greatly pleased John Mercer. She accepted two nandkerchiets of mercerized cotton from im. A French company immediately offered Mercer £40,000 for his patents, but Mercer refused the offer. The patents remained in England. He had much difficulty in per- suading manufacturers to use his process, because of the high cost of chemicals. But eventually he succeeded, and his process has brought in tens of millions of pounds to Lancashire. Mercer was an eminent scientist. He gave lectures on light and heat and chemistry. He was a great pioneer. He did not make his discovery by chance, as many people believe. He helped to start Technical Schools in England. He conceived of the ‘energy theory ”’ of the universe before Kelvin, and ~ 3