I am constantly searching for the commentary of मीमांसान्यायप्रकाश by Kr̥sṇạ̄nātha nyāyapañcānana. No luck till date. 

If any one finds the book even in any library kindly let me know.

 This book must have published from Calcutta 1880s. There is in an entry in Bibliography of Indian Philosophy. 

He has not only written on Nyayaprakasa but also on Arthasangraha which is very lucid, Vedantaparibhasa and also on Champu Ramayana Abhijnana Shakuntala etc. 

Thanks