1920a. Notes on British Orthoptera, 1919. Entomologist, vol. 53, pp. 128-131. 1922. Notes on British Orthoptera in 1921. Entomologist, vol. 55, pp. 200-203. 1923. _Leucophaea surinamensis_ Linn., etc. (Orthoptera). Entomologist, vol. 56, p. 141. 1925. Notes on British Orthoptera (including Dermaptera) in 1924. Entomologist, vol. 58, pp. 81-86. 1927. Notes on British Orthoptera (including Dermaptera) in 1926. Entomologist, vol. 60, pp. 265-268. 1930. Notes on British Orthoptera in 1929. Entomologist, vol. 63, pp. 145-147. LUCKER, J. T. 1932. Some cross transmission experiments with _Gongylonema_ of ruminant origin. Journ. Parasitol., vol. 19, pp. 134-141. LUTZ, A., and SPLENDORE, A. 1903. Ueber Pebrine und verwandte Mikrosporidien. Ein Beitrag zur Kenntnis der brasilianischen Sporozeen. Centralbl. Bakt., Abt. 1 Orig., vol. 33, pp. 150-157. LWOFF, A. 1923. Nature et position systématique du bactéroïde des blattes. Compt. Rend. Soc. Biol., Paris, vol. 89, pp. 945-948. LYON, S. R. 1951. More about scorpions. Pest Control, vol. 19, No. 9, pp. 11-12, 14. MACDOUGALL, R. S. 1925. Insect pests of 1924. Trans. Highland and Agr. Soc. Scotland, ser. 5, vol. 37, pp. 167-193. MACFIE, J. W. S. 1922. Observations on the rôle of cockroaches in disease. Ann. Trop. Med. Parasitol., vol. 16, pp. 441-448. MACKERRAS, I. M., and MACKERRAS, M. J. 1949. An epidemic of infantile gastroenteritis in Queensland caused by _Salmonella bovis-morbificans_ (Basenau). Journ. Hygiene, vol. 47, pp. 166-181. MACKERRAS, I. M., and POPE, P. 1948. Experimental _Salmonella_ infections in Australian cockroaches. Australian Journ. Exp. Biol. Med. Sci., vol. 26, pp. 465-470. MACKERRAS, M. J., and MACKERRAS, I. M. 1948. _Salmonella_ infections in Australian cockroaches. Australian Journ. Sci., vol. 10, p. 115. MACNAY, C. G. 1954. Summary of important insect infestations, occurrences, and damage in Canada in 1954. Ent. Soc. Ontario, Ann. Rep., vol 85, pp. 61-91. MADEL, W. 1942. Ueber Lebensweise, Schaden und Bekämpfung der in Häusern und Betrieben auftretenden Schaben. Prakt. Desinfektor, vol. 34, pp. 1-5. MAGALHÃES, P. S. DE. 1898. Notes d'helminthologie brèsilienne. 7. Du _Gigantorhyncus moniliformis_ Bremser chez le _Mus decumanus_ Pallas et de sa larve chez _Periplaneta americana_ Fabr. comme hôte intermédiare. Arch. Parasitol., Paris, vol. 1, pp. 361-368. 1900. Notes d'helminthologie brèsilienne. 10 [i.e., 11] Matériaux pour servir à l'histoire de la flore et de la faune parasitaire de la _Periplaneta americana_ Fabricius.--Une Nouvelle espéce d'_Oxyuris_, _O. Bulhõesi_. Arch. Parasitol., Paris, vol. 3, pp. 34-69. MAIN, H.