208 



ON SOME N.S.W. TAN-S (INSTANCES. 

 QUALITATIVE TESTS, (Dilute Extract). 





1 



2 



Boiled with equal volume of Sulphuric Acid: 



Species. 



Reaction. 



(1 in 5) 





a— in the cold. 



b— on boiling. 



30. El^eocarpus 



Faintly acid. 



No change. 



No change. 



graudis, F.v.M. 









(Bark.) 









31. Ehus 



Decidedly acid 



Salmon coloured ppt. 



Almost entirely re- 



rhodanthema, jF.-u.1T. 





which increases on 



dissolves. 



(Bark.) 





standing. 





32. Rhus 



Faintly acid. 



No change ; turbidity 



No change. 



rhodanthema, F.v.M. 





on standing. 





(Leaves.) 









33. Acacia 



ditto. 



No change ; reddish- 



Almost entirely re- 



komalophylla, A. Cunn. 





brown ppt. on stand- 



dissolves. 



(Bark.) 





ing. 





34. Acacia 



ditto. 



Ditto ; but less copious 



Precipitate does not 



Oswaldi, F.v.M. 

 (Bark.) 

 37. Eucalyptus 







redissolve. 



Decidedly acid 



Turbidity ; copious 



Ditto ; but rises to the 



stellulata, Sieb. 





salmon coloured ppt. 



top in coagulated 



(Kino.) 





on standing. 



lumps. 



38. Eucalyptus 



ditto. 



Ditto. 



Ditto. 



amygdalina, Lab ill. var. 









(Kino.) 









39. Eucalyptus 



ditto. 



Ditto ; but more floc- 



Ppt. coagulates into 



piperita, Smith, var. 





culent. 



one large lump which 



(Kino.) 







almost redissolves on 



40. Eucalyptus 



Neutral. 



Flesh-coloured ppt. 



further boiling. 



siderophloia, Benth. 







Precipitate does not 



(Bark.) 







redissolve. 



41. Eucalyptus 



Faintly acid. 



No change ; slight 



Ditto. 



viminalis, Lab ill., var. 





brownish ppt. on 





(Bark.) 





standing. 





42. Eucalyptus 



ditto. 



Ditto. 



Ditto. 



Stuartiana, F.v.M. 

 (Bark.) 

 43. Eucalyptus 









ditto. 



No change; turbidity 



Ditto. 



corymbosa, Smith 





on standing. 





(Bark.) 









44. Eucalyptus 



Decidedly acid 



Turbidity ; reddish- 



Ditto. 



maculata, Hook. 





brown ppt. on stand- 





(Bark.) 





ing. 





45. Eucalyptus 



Faintly acid. 



No change ; slight pale 



Entirely redissolves. 



maculata, Rook. 





yellow ppt. on stand- 





(Kino.) 





ing. 





46. Ebemophila. 



ditto. 



Turbidity ; slight pale 



Almost redissolves. 



longifolia, F.v.M. 

 (Bark.) 

 47. Eremophila 





brown ppt. on stand- 





Decidedlj acid 



ing. 

 No change. 



Precipitate entirely re- 



longifolia, F.v.M. 

 (Leaves.) 

 48. Polygonum 







dissolves. 



ditto. 



Faint light ppt. 



Precipitate does not 



plebejum, R. Br. 







redissolve. 



(Whole plant except root.) 









49. Grevillea 



Faintly acid. 



No change ; orange- 



Ditto. 



striata, R. Br. 





coloured ppt. on 





(Bark.) 





standing. 





50. Hakea 



ditto. 



Turbidity ; pale floc- 



Ppt. almost entirely 



leucoptera, R. Br. 





culentppt. on stand- 



redissolves. 



(Bark.) 





ing. 





51. Banksia 



ditto. 



Reddish-brown ppt. 



Precipitate does not 



integrifolia, Linn. f. 

 (Bark.) 

 52. Banksia 







redissolve. 



ditto. 



Ditto ; but in far larger 



Ditto. 



serrata, Linn. t. 





quantity. 





(Bark.) 









53. Casuarina 



ditto. 



No change ; slight ppt. 



Ppt. redissolves. 



glauca, Sieb. 

 (Bark.) 

 54. Excocarpus 





on standing. 





ditto. 



Salmon-coloured ppt. 



Precipitate does not 



cupressiformis, Labill. 







redissolve. 



(Bark.) 



For 35 and 36 



(A. longifolia) seep. 90. 





