180 J. H. MAIDEN. 



some water, tie up and shake vigorously and let stand until the 

 tanning is complete. 



Incidentally I may mention that the young leaves of the Blood- 

 wood if pulled asunder contain a substance which appears to be 

 identical in its physical properties to india-rubber; it can be 

 readily drawn into long threads. I am not aware that it has been 

 chemically examined. New South Wales and Queensland. 

 Eucalyptus incrassata, LabilL 



For analyses of the kinos of mallees belonging to this species, 

 collected by the Elder Exploring Expedition, see (61a). 



Eucalyptus leucoxylon, F.v.M., "Blue Gum of Victoria and South 

 Australia." 

 The kino is easily soluble in water, is of slightly acid reaction, 

 becomes turbid, but clear again on heating. (Eucalyptographia). 

 Victoria and South Australia. 



Eucalyptus maculata, Hook., "Spotted Gum." 



Lauterer (33) examines this kino at length. Spotted Gum 

 kino is used in the bush for toothache, and squarers use it to cure 

 sores and cuts. Victoria to Queensland. 



Eucalyptus microcorys, F.v.M., "Tallow- wood." 



Lauterer (33) also examines this kino at length. New South 

 Wales and Queensland. 



Eucalyptus tesselaris, F.v.M., "Carbeen." 



For an analysis of this Kino collected by Mr. R. Helms of the 

 Elder Exploring Expedition see (61a). 



"At times one finds a woolly mass in partially burnt logs, 

 which is found to be a white crystalline body, like benzoic acid. 

 This substance may be revolatilized and collected of a pure white 

 colour, under a cold bell-glass. It has the pleasant odour of 

 benzoin, but has not been further investigated." (Dr. J. Bancroft). 

 Lauterer (33) examines this kino at length. New South Wales 

 and Queensland. 



The following notes on Eucalyptus kinos show the state of the 

 chemistry of the subject prior to researches begun by myself, 



