398 THE EXAMINATION OF EUCALYPTUS KINOS, 



No. 44. A specimen received from W. Gill, Esq., F.L.S., Con- 

 servator of Forests, S.A., July, 1891, is in small pieces, very dull 

 externally. Friability normal. Colour of unground kino a dull 

 sienna-brown, colour of powder ochre-yellow. 



It does not entirely dissolve in cold water ; the supernatant 

 liquid is pale yellowish, and it does not entirely dissolve in alcohol ; 

 the liquid becomes clear on standing, but on agitation has a very 

 turbid appearance. Its composition (determined August, 1891) 

 is : — 



Catechin and tannic acid ... 82-471 



Ligneous matter, &c. ... ... 3*827 



Moisture 13*370 



Ash -332 



100*000 

 Tannic acid determination (Lowenthal), 26*2 per cent. 



Eucalyptus leucoxylon, F.v.M. B.F1. iii. 209, and Decade 1, 

 Mueller's Eucalyptographia. 



Under the above name two distinct trees have been included, 

 viz. : — A New South Wales ironbark, and a white or blue gum 

 found in Victoria and South Australia. The New South Wales 

 tree is E, sideroxylon, A. Cunn., the southern one is E. leucoxylon, 

 F.v.M., a tree with a pale-coloured wood as its name denotes, 

 while the N.S.W. ironbark has red timber, and also one of quite 

 a different character to the other. I give notes under the heading 

 of each colony to help to set the matter clear, and would point 

 out that in this instance examination of the kinos is a valuable 

 help, showing that the products of the N.S.W. ironbark and the 

 Victorian or South Australian white gum are very different. 



New South Wales. Syn. E. sideroxylon, A. Cunn. — The " Red 

 Flowering Ironbark " ; it, however, sometimes has white flowers. 

 Red ironbark of Mudgee district (Hamilton) and other parts of 

 the colony. 



In a "Note on Eucalyptus leucoxylon, F.v.M.," by the Rev. Dr. 

 Woolls (P.L.S.N.S.W. [2], i. 859), this matter of the confusion 



