610 ON KINGS AS AN AID IN THE DIAGNOSIS OF EUCALYPTS, 



Kino-tannic acid, 62-58 per cent.; insoluble phlobaphenes, 6-58 

 per cent. ; soluble in cold water, 92*62 per cent. 



3. E. amygdalina, var. " Peppermint." (This and the pre- 

 ceding tree are very different in appearance.) Little River, near 

 Braidwood, KS.W. Collected Uth November, 1886. Height, 

 60-80 ft. ; diam., 1-2 ft. Physical description same as " Ribbon 

 Gum." 



To cold ^yater it yields a perfectly clear pale ruby solution, 

 with insoluble phlobaphene of the same colour. Residue con- 

 tains a few particles of ligneous matter. Colour of residue 

 Vandyke brown. 



Kino-tannic acid, 62*4 per cent.; insoluble phlobaphenes, 5-5 

 per cent.; soluble in cold water, 93*4 per cent. 



Following is the description of a sample of E. amygdalina 

 Kino examined by Dr. Wiesner (Pharm. Journ. [3] ii. 102) : — 

 " Easily soluble in water, solution neutral, onion-red, turbid * on 

 cooling. Black particles, and only in very thin fragments, 

 zircon-red in transmitted light, fatty lustre, very tough, rich in 

 fibrous bark." 



4. This sample had been collected for an indefinite period when 

 received on 29th December, 1887. No particulars are available. 



This and the following Kino, received from the Sydney Botanic 

 Gardens, are very similar in outward appearance, and the same 

 description will apply to both. They have obviously been 

 collected for a very considerable period, are bright and black, 

 and look very much like little pieces of jet. Although of a 

 horny nature, it is not very difficult to reduce them to a coarse 

 black sparkling powder, as they are rather brittle, but it is very 

 difficult to rub them down into an impalpable powder, which is 

 dull, and in colour purplish-brown with a predominance of red, 

 and inclining to Venetian red. 



* There is some mistake here ; his labels have probably got mixed. I 

 have examined scores of Kinos of this species. The same remarks also apply 

 to E. pilularis, infi^a, a common Sydney species. 



