LANGER, J. 1897. Ueber das Gift unserer Honigbiene. Archiv. exper. Path. und Pharm., xxxviii, p. 381-396. LAVINDER, C. H. 1911. Pellagra: a précis. U. S. Publ. Health Service Bul. 48, 37 p. LEIDY, J. 1847. History and anatomy of the hemipterous genus _Belostoma_. Journ. Acad. Philad. (2), i, p. 57-67. LEIPER, R. T. 1907. The etiology and prophylaxis of dracontiasis. British Med. Journ. 1907, p. 129-132. LEISHMAN, W. B. 1910 a. Observations on the mechanism of infection in tick fever and on the hereditary transmission of _Spirochæta duttoni_ in the tick. Trans. Soc. Trop. Med. Hyg., iii, p. 77-95. Abstr. in Bul. Inst. Pasteur, viii, p. 312-313. ---- 1910 b. On the hereditary transmission and mechanism of infection in tick fever and on the hereditary transmission of _Spirochæta duttoni_ in the tick. Lancet., clxxvii, p. 11. LINNELL, R. McC. 1914. Notes on a case of death following the sting of a scorpion. Lancet, 1914, p. 1608-1609. LIVINGSTONE, D. 1857. Missionary travels and researches in South Africa. LUCAS, H. 1843. (note) _Latrodectus malmignatus_ Bul. Soc. Ent., France, 1843, p. viii. LUDLOW, C. S. 1914. Disease bearing mosquitoes of North and Central America, the West Indies and the Philippine Islands. War Dept., Office of Surgeon General. Bul. No. 4, 1-96. LUGGER, 1896. Insects injurious in 1896. Agr. Exp. Sta. Bul. 48. p. 33 to 270. MacCALLUM, W. C. 1898. On the hæmatozoan infection of birds. Journ. Exp. Med. iii, p. 117. MacGREGOR, M. E. 1914. The posterior stigmata of dipterous larvæ as a diagnostic character. Parasitology, vii, p. 176-188. MacLOSKIE, G. 1888. The poison apparatus of the mosquito. Amer. Naturalist, xxii, p. 884-888. MALLOCH, J. P. 1913. American black-flies or Buffalo gnats. U. S. Dept. Agric. Bur. Ent. Tech. Bul. 26, p. 1-72. ---- 1914. Notes on North American Diptera. Bul. Illinois State Lab. Nat. Hist., x, p. 213-243. MANSON, P. 1911. Tropical diseases: a manual of the diseases of warm climates. 8^o. London, Cassell & Co. (xx + 876 p.). 4 ed. (1907). Reprinted. MARCHOUX, E. and COUVY, L. 1913. Argas et spirochætes (1 mémoire). Les granules de Leishman. Ann. Inst. Pasteur, xxvii, p. 450-480. 2 mémoire. Le virus chez l'acarien. ibid. p. 620-643. MARCHOUX, E. and SELIMBENI, A. 1903. La spirillose des poules. Ann. Inst. Pasteur, xvii, p. 569-580. MARCHOUX, E. and SIMOND, P. L. 1905. Études sur la fièvre jaune. Ann. Inst. Pasteur, xx, pp. 16-40, 104-148, 161-205. MARLATT, C. L. 1902. (See Howard, L. O. and Marlatt, C. L.) ---- 1907. The bed-bug (_Cimex lectularius_ L.) U. S. Dept. Agric., Bur. Ent., Circ. No. 47, revised ed., 8 pp. MARTIN, G. LEBOEUF, and ROUBAUD. 1909. Rapport de la mission d'études de la maladie du sommeil au Congo français. 4^o. Paris, Masson & Cie. (vi + 722 p., 8 pls. and map.).