"It was a hard specimen to prepare—but of course Mr. Rogers had taught me a great deal. He is, as you know, a very great artist. When he came he helped me complete the specimen—helped very materially, I assure you—but he left soon without even greeting the men. As I tell you, he was called away suddenly. There were important chemical reactions involved. They made loud noises—in fact, some teamsters in the court outside fancy they heard several pistol shots—very amusing idea!