These letters and sketches of letters which the curator of the Ives Collection at Yale University, Mr. John Kirkpatrick, has been kind enough to allow us to copy give the history of a warm and inspiring friendship with Charles Ives. It started around 1924, when Mr. Clifton J. Furness, a music teacher at the Horace Mann High School in New York City, where I was a student, introduced me to him. From what I can remember, we went to Ives's house by Gramercy Park on a dark, rainy Sunday afternoon, and stepped into a cheery, old-fashioned interior, discussing excitedly modern music all afternoon. After this, I met Ives occasionally, sometimes when he invited me to join Mrs. Ives and him in their box at the Saturday afternoon Boston Symphony concerts at Carnegie Hall, or at Katherine Ruth Heyman's loft in a building that no longer exists, on Third Avenue and 10th Street huddling under the El, or later at his house on East 74th Street opposite the Mannes School.