[55] Institution Quarterly, III (1912), 18.

[56] See also a similar instance reported by Lumsden, Hyg. Lab., U.S. Public Health and Marine Hosp. Service, Bull. 78, p. 165.

[57] For a discussion of the oyster question see G. W. Fuller, Jour. of Franklin Institute, August, 1905; N.Y. City Dept. of Health, Monthly Bull., November, 1913, and May, 1915; H. S. Cumming, U.S. Public Health Service, Pub. Health Bull. 74, March, 1916.

[58] Lancet, II (1895), 46.

[59] Park and Krumwiede, Jour. Med. Research, N.S., XVIII (1910), 363.

[60] Ztschr. f. Hyg., XXXV (1900), 265.

[61] Centralbl. f. Bakt., I, Orig., LXVI (1912), 194.

[62] Fleischvergiftungen u. Paratyphusinfektionen (Jena, 1910).

[63] Rept. to Local Govt. Board, N.S. No. 77 (London, 1913).

[64] Zeit. f. Hyg., XXII (1896), 53.