[94] Practically all of the finest butter made in Denmark is made from cream that has been pasteurized at temperatures varying from 160 deg.-185 deg. F. [95] Gebhardt, Virch. Arch., 1890, 119:12. [96] Scheurlen, Arb. a. d. k. Ges. Amte, 1891, 7:269; Bang, Milch Zeit., 1893, p. 672. [97] Moore, Year Book of U. S. Dept. Agr., 1895, p. 432. [98] Weigel and Noack, Jahres. d. Ges. Med., 1890, p. 642; Weissenberg, Allg. med. Cent. Zeit., 1890, p. 1; Baum, Arch. f. Thierheilkunde, 1892, 18:16. [99] Schneider, Muench, med. Wochenschr., 1893, No. 27; Froehner, Zeit f. Fleisch u. Milchhygiene, 1891, p. 55. [100] Feser, Deutsche Zeit. f. Thiermed., 1880, 6:166. [101] Nocard, Bull. Gen., 1885, p. 54. [102] Deutsche Viertelsjahr. f. offentl. Gesundheitspflege, 1890, 20:444. [103] Zeit. f. Fleisch und Milch hygiene, 11:114. [104] E. Roth, Deutsche Vierteljahresschr. f. offentl. Gesundheitspfl., 1890, 22:238 [105] S. W. North, London Practitioner, 1889, 43:393. [106] Sedgwick and Chapin, Boston Med. & Surg. Journ., 1893, 129:485. [107] Dabney, Phila. Med. News, 1893, 63:630. [108] Welphy, London Lancet, 1894, 2:1085. [109] Brit. Med. Journ., 1894, 1:815. [110] Mass. Bd. Health Rept., 1894, p. 765. [111] Turner, London Practitioner, 1892, 49:141; Munro, Brit. Med. Journ., 1894, 2:829. [112] Hankin, Brit. Med. Journ., 1894, 2:613. [113] Heim (Arb. a. d. Kais. Gesundheitsamte, 1889, 5:303) finds it capable of living from 20-30 days in milk. [114] Schueder (Zeit. f. Hyg., 1902, 38:34) examined the statistics of 638 typhoid epidemics. He found 71 per cent. due to infected drinking water, 17 per cent. to infected milk, and 3.5 per cent. caused by other forms of food. [115] Kitasato. Arb. a. d. Kais. Gesundheitsamte, 1:470. [116] Simpson, London Practitioner, 1887, 39:144. [117] Swithinbank and Newman, Bacteriology of Milk, p. 341. [118] Schottelius and Ellerhorst. Milch Zeit., 1897, pp. 40 and 73. [119] Baginsky, Hyg. Rund., 1895, p. 176. [120] Gaffky, Deutsch. med. Wochen., 18:14. [121] Fluegge. Zeit., f. Hyg., 17:272, 1894. [122] Duval and Bassett, Studies from the Rockefeller Inst. for Med. Research, 2:7, 1904. [123] Zeit. f. physiol. Chemie, 10:146; 9 Intern. Hyg. Cong. (London), 1891, p. 118. [124] Vaughan and Perkins, Arch. f. Hyg., 27:308. [125] Newton and Wallace (Phila. Med. News, 1887, 50:570) report three outbreaks at Long Branch, N. J., two of which occurred in summer hotels. CHAPTER VI. BACTERIA AND MILK SUPPLIES WITH ESPECIAL REFERENCE TO METHODS OF PRESERVATION.