THE MIGRATORY HABIT OF HOUSEFLY LARVAE. 11 
The development of the maggot trap into an efficient weapon in the 
warfare against the housefly involves the working out of certain 
practical points, viz, the size and structure of the trap, the time nec- 
essary to keep the manure in the trap to rid it of maggots, the disposal 
of the larvae, etc. 
REFERENCES TO LITERATURE. 
Griffith, A. 1908. The life history of house-flies. Pub. Health, London, v. 21, 
p. 122-127, May. 
Herms, W. B. 1911. The house fly in its .relation to public health. Univ. Cal. Col. 
Agr. Exp. Sta., Bui. 215, p. 513-548, 15 figs., May. 
Hewitt, C. G. 1912. House-flies and How They Spread Disease. Cambridge. 
122 p., illus. (Cambridge manuals of science and literature.) 
Howlett, L. M. 1913. Insect psychology. Proc. Third Meeting of the General 
Malaria Committee held at Madras Nov. 18, 19, and 20, 1912. Simla, p. 32-33. 
Summary of paper read at this meeting. 
Jepson, J. P. 1909. Some observations on the breeding of Musca domestica during 
the winter months. Rpts. to the Local Govt. Bd. [Gt. Brit.] on Pub. Health 
and Med. Subjects, n. s. no. 5, p. 5-8. 
Levy, E. C, and Tuck, W. T. 1913. The maggot trap — a new weapon in our warfare 
against the typhoid fly. Amer. Jour. Pub. Health, v. 3, no. 7, p. 657-660, illus., 
July. 
Newstead, Robert. 1908. On the habits, life-cycle and breeding places of the 
common house-fly (Musca domestica, Linn.). Ann. Trop. Med., Liverpool, v. 1, 
no. 4, p. 507-520, pi. 44-49, Feb. 29. 
Reprinted from Preliminary report issued by the Health Committee of the City of Liverpool, Oct. 
3, 1907. 
Smith, P. I. 1912. The house fly (Musca domestica). No. Car. Agr. Exp. Sta., Col. 
Agr. & Mech. Arts., Ann. Rpt. 34, p. 62-69, figs. 13-14. 
Terry, C. E. 1912. Extermination of the housefly in cities; its necessity and 
possibility. Amer. Jour. Pub. Health, v. 2, p. 14-22, Jan. 
O 
