• 1
    Bulllr, A.H. R. The Enzymes of Polyporus squamosus Huds. Ann. Bot. p. 49. 1906.
  • 2
    Dodce, C. W. Tyrosin in the Fungi: Chemistry and methods of studying the Tyrosinase Reaction. Ann. Mo. Bot. Gar. 6. 1919.
  • 3
    Dox. A. W. The intra-cellular enzymes of lower fungi, especially those of Penicillium Camemberti. Journ. Biol. Chem. 6. 1909.
  • 4
    Harter, L. L. and Weimer, J. L. Influence of the substrate and its H-ion concentration on pectinase production. Journ. Agric. Res. 24. 1923.
  • 5
    Onslow, M. W. Practical Plant Biochemistry. Cambridge , 1920.
  • 6
    Zeller, S. M. Studies in the Physiology of the Fungi. II, Lenzites saepiaria Fries, with special reference to enzyme activity. Ann. Mo. Bot. Car. 3. 1916.