[180] Campbell, No. Brit., Agric., May 12, 1897.
[181] Weigmann, Milch Zeit., No. 50, 1889.
[182] Klein, Milch Zeit. (Hildesheim), No. 17, 1900.
[183] Adametz, Landw. Jahr., 18:256.
[184] Van Slyke and Hart, Bull. 214, N. Y. Expt. Stat., July 1902.
[185] Milch Zeit., 1898, No. 49.
[186] Lafar, Technical Mycology, p. 216.
[187] Adametz, Landw. Jahr., 18:228.
[188] Freudenreich, Landw. Jahr. d. Schweiz, 4:17; 5:16.
[189] Russell, 13 Rept. Wis. Expt. Stat., 1896, p. 95.