EUCALYPTUS LONGIFOLIA. 



bark of different Eiicalypts is very variable, as may be noted from experiments, instituted under 

 my directions by Mr. L. Eummel, fresh bark being used for the purpose, the tannic principle 

 loosing its solubility and also its efficiency to some extent by exsiccation and chemical decom- 

 position. 



In 100 parts of fresh Eark. 



Kino-tannic 

 AciiJ. 



Water. 



Eucalyptus Leucoxylon (rongh-'barked) 





21-94 



51-13 



globulus 





4-84 



51 



54 



rostrata 







8-22 



61 



16 



Guunii 







3-44 



54 



09 



polyanthema ... 







3-97 



46 



66 



melliodora 







4-03 



54 



94 



obliqua 







2-50 



36 



81 



obliqua 







4-19 



51 



59 



amygdalina (rough-barked) 







3-40 



43 



25 



amygdalina (rough-barked) 







3-22 



39 



63 



goniocalyx 







4-62 



51 



00 



goniocalyx 







4-12 



45 



50 



macrorrhyncha 







1112 



35 



91 



macrorrhyncha 







13-41 



39 



56 



vimiualis (smooth-bark) 







4-88 



52 



88 



Timiualis (rough-bark) 







5-03 



54 



10 



vimiualis (young-tree) ... 







5-97 



55-03 



