SYSTEMATIC INDEX. 



PAGE 



Constituents, p. 28. 33. Aldehydes, p. 29. 34. Volatile 

 Acids, p. 29. 35. Ethereal Salts and the Alcohols contained 

 in them ; Primary, Secondary, and Tertiary Alcohols, p. 29. 



III. EXAMINATION OF THE SUBSTANCES SOLUBLE IN ETHER : RESINS 



AND THEIR ALLIES . . . . . .31 



36. Methods of Extraction ; Fixed Oil, p. 31. 37. Chlorophyll, 

 p. 32. 38. Portion of the Ethereal Extract Soluble in Water ; 

 Haematoxylin, Gallic Acid, Glucosides, Alkaloids, etc., p. 32. 

 39. Portion Soluble in Alcohol, p. 33. 40. Microchemical 

 Examination ; Treatment of the Substances dissolved by Ether 

 with various Solvents ; Crystallization, etc., p. 33. 41. 

 Behaviour of Resin to Aqueous and Alcoholic Potash, Sulphuric 

 Acid, Nitric Acid, Bromine, etc., p. 34. 42. Action of fused 

 Potash, Resorcin, Phloroglucin, Pyrogallol, Protocatechuic and 

 Paroxybenzoic Acids, p. 34. 43. Dry Distillation of Resin ; 

 Umbelliferone, Pyrocatechin, p. 36. 44. Examination of that 

 Part of the Ethereal Extract dissolved by Alcohol ; Pseonio- 

 fluorescin, Chrysophanic Acid, etc., p. 36. 45. Acids pro- 

 duced by the Action of Alkalies on Anhydrides ; Santonin, etc., 

 p. 36. 46. Direct Extraction with Ether, p. 36. 



IV. EXAMINATION OP THE SUBSTANCES SOLUBLE IN ABSOLUTE ALCOHOL ; 



RESINS, TANNINS, BITTER PRINCIPLES, ALKALOIDS, GLUCOSES, ETC. 38 

 47. Methods of Extraction ; Estimation of Total Substances dis- 

 solved, p. 38. 48. Estimation of the Portion Soluble in 

 Water ; Phlobaphenes, Alkaloids, etc., p. 38. 

 EXAMINATION OP TANNIN . . . . . .39 



49. Detection, p. 39. 50. Detection continued, p. 39. 51. 

 Reactions of most Tannins ; Microchemical Detection ; Alcohol 

 more suitable for their Extraction than Water, p. 40. 52. 

 Methods for their Estimation : I. Acetate of Lead, p. 41 ; II. 

 Acetate of Copper, p. 42 ; III. Stannous Chloride, p. 42 ; IV. 

 Tartar Emetic, p. 42 ; V. Acetate of Zinc, p. 43 ; VI. Ferric 

 Acetate, p. 43 ; VII. Permanganate of Potassium, p. 43 ; VIII. 

 Chlorinated Lime, lodic Acid, Iodine, p. 45 ; IX. Caustic 

 Potash and Atmospheric Air, p. 45 ; X. Cinch onine, p. 45 ; XI. 

 Hide, p. 46; XII. Gelatine, p. 46. 53. Tannic and Gallic 

 Acid, p. 47 

 EXAMINATION FOR GLUCOSIDES, ALKALOIDS, ETC. . . .48 



54. By the Method of Agitation, p. 48. 55. List of Bitter Prin- 

 ciples, Acids, etc , removable from Acid Solution by Agitation 

 with Petroleum Spirit, Benzene, Chloroform, p. 49. 56. Ex- 

 traction of Alkaloids from Ammoniacal Solution, p. 49. 57. 

 Direct Test for Glucosides, Alkaloids, etc., p. 50. 58. Isola- 

 tion and Purification of Substances not removable by Agitation ; 

 Separation from Glucose, etc., p. 51. 59. Separation of cer- 

 tain Glucosides and Bitter Principles from Tannin, etc., p. 52. 

 60. Decomposition of Compounds of Lead with Bitter 

 Principles, etc., p. 52. 61. Detection of the Glucosidal 

 Nature of a Substance, p. 53. 62. Other Reactions of Gluco- 

 sides, p. 54. 63. Alkaloids not Isolated by the Method of 

 Agitation ; Group-reagents ; Lassaigne's Nitrogen Test, p. 55. 

 64. Isolation by Precipitation with Potassio -mercuric 

 Iodide, etc., p. 57. 65. Estimation, p. 58. 66. Estimation 



