earliest
phases of the disease, tuberculin causes a temporary fever that lasts
for a few hours. By taking the temperature a number of times before and
after injection it is possible to readily recognize any febrile
condition. A positive diagnosis is made where the temperature after
inoculation is at least 2.0 deg. F. above the average normal, and where
the reaction fever is continued for a period of some hours.

[86] Martin, Brit. Med. Journ. 1895, 1:937; Nocard, Les Tuberculoses
animales, 1895.

[87] C. O. Jensen, Milch Kunde und Milch hygiene, p. 69.

[88] Ostertag, Milch Zeit., 22:672.

[89] Obermueller, Hyg. Rund., 1897, p. 712; Petri, Arb. a. d. Kais. Ges.
Amte, 1898, 14: 1; Hormann und Morgenroth, Hyg. Rund., 1898, p. 217.

[90] Rabinowitsch, Zeit. f. Hyg., 1897, 26: 90.

[91] Th. Smith. Journ. of Expt. Med., 1899, 4:217.

[92] Russell and Hastings, 18 Rept. Wis. Expt. Stat., 1901.

[93] Hesse, Zeit. f. Hyg., 1900, 34:346.

[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] Schued