168 
INDEX. 
Heuchera Americana, 18. 
Hide powder, 49. 
Hide-powder methods, 32. 
Holocarpis glohulus, 63. 
Hungarian galls, 62. 
Hungarian larch, 31. 
Indigo solution, 49. 
Infusion, preparation of the, 
44. 
Iron-bluing tannins, 20. 
Iron-greening tannins, 20. 
Istrian galls, 62. 
Italian galls, 62. 
Japanese galls, 58. 
Ivnoppern, 61. 
Levant galls, 55. 
Mangrove, 25. 
Mecca galls, 60. 
Metallic salts, precipitation by, 
32. 
Miscellaneous methods, 32. 
Nutgalls, 55. 
Oak-bark, 37. 
Pathological tannins, 21. 
Pentacetyl-tannin, 87, 97. 
Permanganate methods, 32. 
Permanganate solution, 48. 
Phlobaplienes, 24, 27. 
Physiological tannins, 21. 
Piedmontese galls, 61. 
Pistacia galls, 62. 
Preparation of tannic acid, 78. 
Properties of tannic acid, 88. 
Purification of tannic acid, 78, 
84. 
Pyrogallol, 24, 26. 
Quercitannic acid, 29. 
Quercus alba, 63. 
Austriaca, 62. 
cerris, 62. 
ilex, 62. 
lobata, 63. 
lusitanica, 55. 
palustris, 63. 
pedunculata, 61. 
robur, 61. 
sessiliflora, 61. 
tinctoria, 60. 
virens, 63. 
Keal’s press, 46. 
Rhatany, 25. 
Rhus glabra, 64. 
Japonica, 58. 
Javanica, 58. 
Rufigallic acid, 23. 
Sampling, 44. 
Schaum-tannin, 81. 
Sodom apple, 61. 
Sumac, 25, 37. 
Tamarisk galls, 62. 
Tamarix articulata, 62. 
Gallica, 62. 
Orientalis, 62. 
Tannates, 92. 
Tannin, 17. 
Tannin extracts, 22. 
Tannin extracts, estimation of, 
41. 
Terebinthus, 62. 
Turkish galls, 55. 
Valonia, 37. 
Water-tannin, 81. 
