i 4 4 PLANT AND ORGANIC CHEMISTRY 



the chlorophyll of the leaves. On evaporating, the ethereal 

 residue was amorphous and of a green color. The aqueous 

 extract obtained from treating this ethereal residue was neutral 

 in reaction and bitter to the taste. It contained no gallic 

 acid, tannin, or glucosides. It was agitated with acetic ether, 

 and the solvent removed a solid, which under the microscope 

 proved to be white-needled shape crystals arranged in bundles. 

 Potash solution formed a yellow-colored mixture with the 

 crystals ; hydrochloric acid discharged the color. The subject 

 has been too little studied to state definitely if these crystals 

 are or are not identical with the crystals found in the ethereal 

 extracts (i) and (2). But it should be noted, that unless the 

 crystals from ethereal extract (3) are brought into aqueous 

 solution mechanically by some compound not present in ethereal 

 extracts (i) and (2), the indications are in favor of the crys- 

 tals from (3) not being identical with them; for the crystals 

 from (i) and (2) were insoluble in water and not removed by 

 acetic ether. 



The ethereal residue was treated with acidulated water and 

 tested negatively for alkaloids. 



The ethereal residue insoluble in water was a mixture of 

 two resins (i) and (2). The one (i) was dissolved by abso- 

 lute alcohol, the other (2) was mostly soluble in ether. The 

 alcoholic residue was crystalline. It was insoluble in acetic 

 ether, but was saponified with alcoholic soda. The ether resi- 

 due was a resin anhydride; it was insoluble in alcohol, and 

 in alcoholic or aqueous alkalies. 



The amorphous and green-colored ethereal residue was not 

 entirely redissolved by cold ether. It was soluble in chloro- 

 form, benzole, and carbon di-sulphide; incompletely soluble 

 in cold alcohol, and insoluble in amyl alcohol. It was slightly 

 soluble in 95 per cent, alcohol and in acetic ether. The latter 

 separated the green coloring matter from it. The resinous 

 mass insoluble in acetic ether melted at 80 C. It was not 

 saponified. This resinous mass insoluble in acetic ether is a 

 mixture of the two resins just described (i) and (2). It was 

 noticeable that the resinous mass was not saponified. Resin 



