GUMS, RESINS, AND KINOS. 243 
“the tannic acid of eucalyptus kino is not, however, equal to 
that of oaks and acacias in tan-power, but it can be used as a 
subsidiary in the tanning process, where light-coloured leather 
is not an object. This kino is easily soluble in water, is of 
slightly acid reaction, becomes turbid, but clear again on heating.” 
Frequently the bark of this tree is completely honeycombed, 
the cavities being entirely filled with kino. The blackish kino 
set in rows, in the light reddish-brown bark, has a beaded, granular 
appearance, characteristic, as far as I know, of this species. 
When old, this kino becomes horny and more or less insoluble. 
The bark (with enclosed kino) yielded the author 67 per cent. of 
extract to water, and 41.9 per cent. of kino-tannic acid. (Proc. 
een. WV... 1887, p.. 38.) 
Spencer’s Gulf (South Australia) to Southern Queensland. 
18. Eucalyptus macrorrhyncha, /.v.dZ., (Syn. Z. acervula, Miq.); 
N.O., Myrtacez, B.FI., iii., 207. 
“Stringybark.” (For other vernacular names, see “‘ Timbers.’’) 
Specimens of this kino from near Bombala, New South 
Wales, have been examined by the author. He found 97.54 per 
cent. of extract, and 78.72 per cent. of kino-tannic acid. (Proc. 
R.S., N.S.W., 1887, p. 84.) The kino is of a rich ruby colour. 
It is readily friable, and for this reason usually appears of a dull 
colour, unless it has been very little handled. It reminds one 
somewhat of some specimens of seed-lac. It is readily soluble 
in water. 
Victoria and New South Wales. 
19. Eucalyptus maculata, Hook., (Syn. £. vartegata, F.v.M.; E. 
peltaia, Benth.); N.O., Myrtacez, B.FI., iii., 254 and 256. 
The common “ Spotted Gum.” 
The appearance of this kino is characteristic, as is also its 
odour. It is of a yellowish-brown to olive colour, while its odour 
is difficuit to describe, but readily recognised when once observed. 
It is one of the most friable of all kinos, perhaps ranking only 
second to £. corymbosa in that respect. This friability is assisted 
by its porous nature, some of it being nearly as porous as pumice, 
