[213] Vid. op. cit., 41, Vol. 65, p. 169.
[214] Zeitschrift des Vereins für die Rübenzucker-Industrie, 1884, S. 854.
[215] Bulletin 46, Division of Chemistry, U. S. Department of Agriculture, p. 60.
[216] The Analyst, Vol. 20, p. 121.
[217] Journal American Chemical Society, Vol. 15, p. 668.
[218] Comptes rendus, Tome 118, p. 147.
[219] Journal of the Chemical Society, Transactions, 1895, p. 735.
[220] Die agrikultur-chemische Versuchsstation, Halle, a/S., S. 114.
[221] Cellulose, p. 77.
[222] Vid. op. cit., 46, p. 63.