6 1 6 Vines . — Proteolytic Enzymes in Plants (II). 
List of References. 
1. Vines: Proteolytic Enzymes in Plants; Annals of Botany, vol. xvii, 1903, 
p. 237. 
2. Buscalioni and Fermi : Studio degli Enzimi proteolytici e peptonizzanti dei 
Vegetali ; Annuario del R. Istituto Botanico di Roma, vii, 1898, p. 99. 
3. Vines : Tryptophane in Proteolysis ; Annals of Botany, vol. xvi, 1902, p. 1, 
4. Martin : Papain Digestion ; Journ. of Physiol., v, 1884, p. 213: also, Nature 
of Papain, and its action on Vegetable Proteids ; Journ. of Physiol., vi, 
1885, p. 336. 
5. Mendel and Underhill : Observations on the Digestion of Proteids with 
Papain ; Trans. Connecticut Acad, of Arts and Sciences, xi, 1901. 
6. Mendel : Observations on Vegetable Proteolytic Enzymes, with special refer- 
ence to Papain ; Amer. Journ. of Med. Sciences, Aug. 1902. 
7. Leitgeb : Der Gehalt der Dahliaknollen an Asparagin und Tyrosin ; Mittheil. 
aus dem Bot. Inst, zu Graz, Heft 2, 1888, p. 215. 
8. Bertrand : Sur une nouvelle oxydase ou ferment soluble oxydant, d’origine 
v^gdtale; Bull, de la Soc. Chimique, Paris, ser. 3, xv, 1896, p. 793. 
9. Morner : Klein ere Mittheilungen : I. Farbenreaction des Tyrosins ; Zeitschr. 
f. physiol. Chemie, xxxvii, 1902, p. 86. 
