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



This sample is chosen as an example of the effect of age on a 

 ruby Kino. The tendency to insolubility has proceeded to an 

 even greater extent in the case of the specimen which follows 

 (No. 7). 



Kino-tannic acid, 12-4 per cent. ; insoluble phlobaphenes, 60-5 

 per cent. ; soluble in cold water, 24*2 per cent. 



7. E. amygdalina, var. "Messmate." Nowra, August, 1888. 

 Height, 100-150 ft. ; diam., 2-6 ft. 



This sample has also been chosen to illustrate the effect of 

 extreme age on a ruby Kino. It has been obtained from the 

 interior of the wood, and incrusts or is attached to the chamois- 

 leather fungus ( Xylostroma giganteum, Fries). It bears a 

 remarkable resemblance to vulcanite, but it is scarcely of a 

 pure black, being of a uniform Vandyke brown. Its fracture is 

 conchoidal, and of an "egg-shell black." It is about as hard as 

 vulcanite, and its powder (difficult to obtain on account of the 

 toughness of the material) is of a burnt-umber colour. It yields 

 practically nothing to boiling water, alcohol or ether, and consists 

 almost entirely of phlobaphenes. 



8. E. mnygdalma, var. (near E. regnans, F.v.M.). " Cut-tail," 

 "Bastard Black -butt." Tingiringi Mountain, Delegate, N.S.W., 

 2nd March, 1889. Height, 200-300 ft. ; diam., 3-6 ft. 



A fresh Kino which appears in no way to differ from that of 

 fresh normal E. amygdalina. 



Eucalyptus eugenioides, Sieh. Made a variety of E. inperita 

 in B. Fl. iii. 208. 



Found in Victoria and N. S. Wales. 



9. "Broad-leaved Stringybark." Bangley Creek, Cambewarra, 

 15th March, 1888. Obtained from various trees from 60-80 ft. 

 high, and 1-2 ft. in diam. Kino very scarce. 



This has been quite freshly exuded, and is for the most part of 

 a pale ruby colour, although particles of it are of deeper tint. It 



