36 ON SOME N.8.W. TAN-SUBSTANCES. 



Qualitative Tests — (Dilute extract). 



1. Faintly acid reaction. 



2. Equal volume of sulphuric acid (1 in 5). In the cold, faint 



salmon ppt. On boiling, ppt. darkens, and becomes nocculent. 



3. Bromine water — Faint yellow ppt. 



4. Dilute ferric chloride — Indigo liquid, with faint purplish tinge. 



Add Ammonia — Dirty brown purplish ppt. 



5. Baric hydrate — Dark olive-brown ppt. 



6. Ammonium sulphide — Slight dirty yellow ppt. 



7. Potassium bichromate — Orange-brown ppt. 



8. Tartar emetic — Slight brownish turbidity. Acid Ammonium 

 chloride — Increased ppt, like that of E. leucoxylon only a 

 little lighter. 



9. Copper sulphate — Dirty greenish-brown ppt, very like that 

 ot A. sentis and A. melanoxylon. Add Ammonia — Light 

 Vandyke-brown ppt. 



10. One drop of Sulphuric acid to one drop extract (on a white 



glazed tile) — Light brown colour. 



11. Lead nitrate — Pale dirty brown ppt with a grey tint. 



12. Manganese sulphate — Light drab ppt. The most copious ppt 



obtained with this reagent amongst all the substances 

 referred to in this paper. 



13. Chrome alum — Slight brownish ppt. 



14. Mercuric chloride — Stone ppt. 



15. Hydro disoclic phosphate — Bark brown ppt. 



16. Potassium ferrocyanide — Same as A. melanoxylon. 



Eucalyptus amtgdalina, var., (Labill.) N.O. Myrtacese, B. PI. iii., 202. 



" Ribbon Gum/' from the circumstance that the bark can be peeled 



off in thin sheets, or ribbons. The botanical synonyms and vernacular 



names of the normal species are very numerous. 



Found -In South Eastern New South Wales (range not co-extensive 

 with that of the normal species). Locality of the particular 

 specimen now under examination : — Nelligen, Clyde Eiver, N.S.W 



Remarks— Part of tree, kino. Diameter of stem 3 feet from ground, 

 2 feet, 6 inches. Height 80 to 100 feet. Date of Collection, 21st 

 and 22nd Sept., 1886. Date of Analysis, 20th April and 17th. 

 May, 1887. 



A clear port-wine coloured kino, which is very friable, forming 

 a sparkling powder. Dissolves readily in cold water, forming a 

 clear liquid, and with but little residue. Water at 100° C. 

 dissolves 99*22 per cent, extract, leaving 0'78 per cent, of a brownish 

 resin. Of this residue a portion equal to 0-46 per cent, of the total 

 quantity of kino acted upon, is soluble in alcohol at 60° F. 97*32 

 per cent, of the kino is soluble in alcohol at 60° F. The kino 

 yields 57 '76 per cent, of kino-tannirj acid. 



