P M Pollak : Memoirs and correspondence of Lyon Playfair / [edited with biographical material by] Thomas Wemyss Reid ; a new introd. by Colin Armstrong.
P Marshall : The anatomy of Nelson's ships / Drawings designed by E. Bowness and executed by G. F. Campbell. Folding plans designed and executed by G. F. Campbell.
P Marshall And Co Ltd : The last survivors in sail ; a record of square-rigged sailing ships still at sea, and of those lost since the great war / by John Anderson; with drawings by J. C. Burnie and cover design by R. H. Penton.
P Murphy : Irish-American history of the United States / by John canon O'Hanlon ; with an introduction by Thomas J. Shahan.