[47] Tucker’s Manual of Sugar Analysis, p. 164.
[48] (bis). Gerlach, Spencer’s Handbook for Sugar Manufacturers, p. 91.
[49] Vid. op. cit. supra, p. 45.
[50] Vid. loc. et op. cit. supra.
[51] Gill; Journal of the Chemical Society, Vol. 24, 1871, p. 91.
[52] Wiley; American Chemical Journal, Vol. 6, p. 289.
[53] Vid. op. cit. supra, p. 301.
[54] Zeitschrift des Vereins für die Rübenzucker-Industrie, 1890. S. 876.
[55] Weber and McPherson; Journal of the American Chemical Society. Vol. 17, p. 320; Bulletin No. 43. Department of Agriculture, Division of Chemistry, p. 126.
[56] Zeitschrift des Vereins für die Rübenzucker-Industrie, 1888, S. 51.