17 



4 



ll 



II. The Hauk of the Eucalypts. 



Tlio hiirk of sonic of those tm«s is n'iii!irkiil»lf lor its liardiu'SH, 

 notably so that of tlie so-callrd iron-bark tret' ( Kitcii/i//>fiiii Lfii- 

 voxi/h)i, Ffcjl. Mueller), wliieli is particularly thick and ru-r^ed, 

 and studded with deposits of a dark thick <runi-resiu : others are 

 thick and bulky, of a lax and what nii<,'ht, be termed fibrous tex- 

 ture ; this especially holds good with rei^ard to that of the so- 

 called strin-rybark tree { /'Jitnifi/ptiisohlit/iui, l/IIeritier). which is 

 removed in lariri! sheets and employed for rooting jjurjioses in the 

 interior, aflordini;' a cool and effectual shelter from the sun and 

 rain. The aborigines are very dexterous in the art of separatini^ 

 it from the tree and fiattcniug it for the purpose alluded to. 

 Some species throw off their outer bark in lon^ntudinal strips, 

 which han<,nn;^ down from the stems and branches, present a very 

 singular ai)pearance. Amongst a variety of material upon wliieh 

 I expi'rimeiitod with the view of ascertainiui:: their applicability 

 to paper makin;;', were the barks of a number of species of 

 Euealypts. From my samples of paper it was inferred thct the 

 barks oi' Euat/i/ phis ohliqua, L'Hcr., Euaili/pfns rostrata,i>c\\\., 

 Eucalijptas ami/gilnlin((, Lab., Eucahiptm globulus, Lab., Euml- 

 i/ptits (jonioailijx, F. M., EufaJijpfns ct n/m(>osa,it'U\., Eitodi/pfus 

 Lcncoxi/lon, F. M., Enaili/pfns loiuji/'i/i", liink., and Euralijpfits 

 StKdrtuoKt, F. M., were all well adapted for the manufacture of 

 packinfj; paper, mill and paste boards; that of the E. globulus 

 possibly also for printing paper ; and that of E. obliqua also for 

 printing and even for writing paper. From this it may be in- 

 ferred that they are not \xnlikely to meet with applications in 

 this branch of industry. 



The barks of many of the species arc remarkable for their as- 

 tringent qualities, and upon examination were found to contain 

 appreciable quantities of tannin. From my determinations the 

 following have been selected, which may serve to show the prob- 

 able value of the barks as tanning materials. 



