This erasure is from Donald Culross Peattie’s An Almanac for Moderns, a book of daily essays on the natural world written in the Midwest and published in 1935. Moore uses the book as part of a daily erasure practice, erasing the correspondent day and seeking to radically transform Peattie’s meditations, dramatically shifting the topic and focus of the original entries.
Peattie, Donald Culross. An Almanac for Moderns. Editions for the Armed Services, 1935.