My copy of Barney M. Hunter's book on the Adkins surname has a copyright date of 1990. It has a little over 160 pages and I consider it well written. Included in the 350 years of genealogy are photocopies of old pictures and maps. All in all, I felt it was money well spent.
I don't know if the book is still available since over 20 years have passed since the copyright date. If anyone knows of the current availability, it would be appreciated if they added a message on this subject.
The Claiborne Parish Library in Homer, LA may have a copy of Mr. Hunter's book. On one of my visits to Homer, I saw copies of several of the genealogy books that I own in the the Homer library but I cannot remember for certain if the Adkins book was one of them. If you cannot find a copy of the Adkins book, you might try the library in Homer.