Mitchell, P.C. 1933. Report on the additions to the Society’s Menagerie during the month of May 1933. Proceedings of the Zoological Society of London 1933 (3): 853.
Mitchell, P.C. 1933. Official guide to the gardens and aquarium of the Zoological Society of London, 30th edition. London, Zoological Society of London. pp. 1-129.
Mitchell, P.C. 1933. Report on the additions to the Society’s Menagerie during the months June to September 1933. Proceedings of the Zoological Society of London 1933 (4): 1119.
Mitchell, P.C. 1928. Report on the additions to the Society’s Menagerie during the months of May, June, July, August and September 1928. Proceedings of the Zoological Society of London 1928 (2): 1036.
Mitchell, P.C. 1925. Report on the additions to the Society’s Menagerie during the months of November and December 1924. Proceedings of the Zoological Society of London 1925 (1): 327.
Mitchell, P.C. 1923. Report on the additions to the Society’s Menagerie during the months of November and December 1922. Proceedings of the Zoological Society of London 1923 February 6: 175.
Mitchell, P.C. 1912. Report on the additions to the Society’s Menagerie uring the months of May, June, July, August and September 1912. Proceedings of the Zoological Society of London 1912 October 29: 908.
Mitchell, P.C. 1911. On longevity and relative viability in mammals and birds with a note on the theory of longevity. Proceedings of the Zoological Society of London 1911 (1): 425-548.
Mitchell, P.C. 1911. Strauss und Rhinozeros im Hagenbeckschen Tiergarten. Zoologische Garten A.F. 52: 219-220.
Mitchell, P.C. 1911. Report on the additions to the Society’s Menagerie during the month of May, 1911. Proceedings of the Zoological Society of London 1911 June 27: 985.
Mitchell, P.C. 1911. Official guide to the gardens and aquarium of the Zoological Society of London, 9th edition. London, Zoological Society of London. pp. 1-112.
Mitchell, P.C. 1911. Remarks upon a pair of young African rhinoceroses seen at Mr Hagenbeck’s Zoological Park at Stellingen. Proceedings of the Zoological Society of London 1911 June 27: 987-988.
Mitchell, P.C. 1911. Illustrated official guide to the London Zoological Society's gardens in Regents Park, 9th edition. London, Zoo.
Mitchell, P.C. 1906. Report on the additions to the Society’s menagerie during the months June, July, August and September 1906. Proceedings of the Zoological Society of London 1906 June 9: 758-760.
Mitchell, P.C. 1905. On the intestinal tract of mammals. Transactions of the Zoological Society of London 17: 437-536, figs. 1-50.






