Is Palmer Cox's brownies copyright free?

Palmer Cox's brownies, originally published in the late 19th century, are considered to be in the public domain due to their age, as works published before 1923 are generally no longer under copyright protection. This means that anyone can use, reproduce, or adapt the brownies without seeking permission or paying royalties. However, it's always good practice to verify the specific publication date and any potential state or international copyright laws that might apply.