What has the author Walter George Cadmus written?

It seems you're asking about Walter George Cadmus, an American painter who's known for his realistic style and his portrayal of classical mythology.

Walter Cadmus was not an author. He was a painter, and his works were primarily paintings, not written works.

If you're interested in learning more about his work, you can search for "Walter Cadmus paintings" online. You'll find information about his artistic style, famous paintings, and his impact on American art.