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Letters to the editor Celebrating Alfred Bader I very much enjoyed your article on students celebrating the 100th birthday of Alfred R. Bader (C&EN, Dec. 2/9, 2024, page 51). In 1976, in addition to it being the 200th birthday of the US, it was the 100th anniversary of the American Chemical Society. I was chair of the New Haven, Connecticut, section of ACS. We decided to have a special anniversary meeting for our annual Spouses Night. Along with the two other ACS Connecticut sections, we invited Bader to give a talk at our joint meeting. He was a wonderful speaker and discussed how he traveled in Europe buying paintings that he thought might be painted over a previous one. In the Renaissance and later period, canvas was expensive, and this was a common occurrence. He had two projectors. One had a view of a painting he purchased, and the other