Michael Spencer Robertson, Faculty of Law, University of Otago, has published More Reasons Why Jurisprudence is Not Legal Philosophy at 30 Ratio Juris 403 (2017). Here is the abstract.
It is generally assumed, without argument, that legal theory, legal philosophy, philosophy of law, and jurisprudence all mean the same thing. This paper rejects that assumption, and in particular the assumption that jurisprudence is the same thing as legal philosophy. This assumption has recently been challenged by Roger Cotterrell in his article “Why Jurisprudence Is Not Legal Philosophy,” and I seek to build on his arguments by adding insights found in the work of Stanley Fish.The full text is not available from SSRN. Download from Ratio Juris here.