ON SOME N.S.W. TAN-SUBSTANCES. 199 



Action of Rectified Spirit at 60° F. It enters into solution 

 readily, forming a dark sherry-coloured liquid. Colour of residue 

 yellowish to brown, and consisting entirely of woody fibre in a 

 line state of division. 



Kino-tannic acid — 44*55 per cent. Mr. Staiger(7oc. cit.) gives 

 the percentage in his sample at 34-97. Mr. Grim wade (loc. cit.) 

 gives the percentage in his sample at 10, "of tannin closely allied, 

 if not identical with querco-tannic acid." 



46 and 47. Eremopiiila longifolia, F.v.M., N.O. Myoporinea*, 

 B. Fl. v., 23. Figured, Tab. 13 of Baron Mueller's 

 "Myoporinous Plants of Australia," and t. 18 of Brown's 

 "Forest Flora of South Australia." 

 Found in all the Colonies except Tasmania, 

 Vernacular Name — " Emu Bush." ( Other species of 

 Eremophila also go by this name owing to Emus feeding 

 on the fruits or seeds). 

 Locality whence this particular specimen was obtained — 



Ivanhoe, via Hay. 

 Parts of the Tree Examined — Bark and Leaves. 

 Particulars of the trees whence they were obtained — Height 



10 to 15 feet; diameter 6 to 8 inches. 

 Collected : Bark, 4th October, 1886 ; Leaves, 19th November, 

 1886. Analysed : Bark, 19th August to 1st September, 

 1887 ; Leaves, 12th to 22nd September, 1887. 



46. Bark. — A very prominently and irregularly fissured bark, 

 prevailing colour of outside grey to brown. Very similar in 

 appearance, except that the fissures are not so deep, to the bark 

 of the Cork Oak. Inner bark light brown, and containing no 

 fibre. Average thickness barely ^ inch. Forms an impalpable 

 powder, owing to the absence of fibre, and of a yellowish-brown 

 colour. 



Extract. — Yields 19-11 per cent, to water at 100° C. Solution 

 of an intensely dark brown colour. Colour of moist residue, dark 

 dirty brown. 



Tannic acid. — 5*107 per cent. 



47. Leaves. — The aboriginals in the interior use the bruised 

 leaves of this and some other species of Eremophila for tanning 

 the skins of the male wallaby in order to make water-bottles. 



The following description of the leaves of this species, which 

 applies in every respect to my specimens, is taken from the " Flora 

 Australiensis ": — "The young shoots minutely hoary tomentose, 

 the older foliage nearly glabrous and often drying black. Leaves 



