The new MLA volume Approaches to Teaching the Works of Jack London, edited by Kenneth Brandt and Jeanne Campbell Reesman, should be available soon; Amazon.com lists the publication date as August 1.  http://www.amazon.com/Approaches-Teaching-Works-London-Literature/dp/1603291431

I have an essay on teaching “Samuel” as regional literature in the volume and will update with a full table of contents later.