In this portion of the video series, Dr. McLaughlin discusses the various properties of the Paw Paw tree chemicals (annonaceous acetogenins) and how they are used in some of the products he works with. The Paw Paw can be used to rid people and animals of intestinal parasites and other things, such as head lice. It also has uses as a pesticide. He also discusses the manufacture of the products and the use of the tree. He is a very thorough researcher. It is fascinating to see how a true scientist conducts his investigations.