210 



ON SOME N S.W. TAN-SUBSTANCES. 

 QUALITATIVE TESTS, (Dilute Extract)— continued. 





6 



7 



8 



Species 



Cobalt Acetate. 



Potassic Dichromate. 







Tartar Emetic. 



30. Elsocarpus 



Dirty brown 



No change. 



No change. 



grandis, F.v.M. 



precipitate. 







(Bark.) 









31. Rhus 



Dark salmon 



Brown precipitate. 



Slight orange-brown 



rhodanthema, F.v.M. 



precipitate. 





precipitate. 



(Bark.) 









32. Rhus 



Dirty brown 



No change ; darkens 



No change. 



l-hodantheina, F.v.M. 



precipitate. 



on standing. 





(Leaves.) 









33. Acacia 



Reddisb-brown 



Ditto. 



No change. 



homalophylla, A. Cunn. 

 (Bark.) 

 34. Acacia 



precipitate. 







Ditto. 



No change. 



No change. 



Oswaldi, F.v.M. 









(Bark.) 









37. Eucalyptus 



Dark salmon 



Dark purplish-grey 



Slight purplish ppt. 



stellulata, Sieb. 



precipitate. 



precipitate. 





(Kino .) 









38. Eucalyptus 



Much darker than 



Ditto. 



Ditto. 



amygdalina, LabiU. var. 



last, almost 







(Kino.) 



purplish-grey. 







39. Eucalyptus 



Like E. stellu- 



Ditto. 



Ditto. 



piperita, Smith, var. 

 (Kino.) 

 40. Eucalyptus 



lata. 







Dark reddish- 



Turbidity ; slight red- 



Turbidity. 



siderophloia, Benth. 



brown ppt. 



dish-brown ppt. on 





(Bark.) 





standing. 





41. Eucalyptus 



Dark brown 



No change. 



No change. 



viminalis, LabiU., var. 



precipitate. 







(Bark.) 









42. Eucalyptus 



Ditto. 



No change. 



No change. 



Stuartiana, F.v.M. 









(Bark.) 









43. Eucalyptus 



A light brown 



No change ; turbidity 



No change. 



corymbosa, Smitli 

 (Bark.) 

 44. Eucalyptus 



precipitate. 



on standing. 





Dark reddish- 



Turbidity ; slight red- 



No change. 



maculata, Hook. 



brown ppt. 



dish-brown ppt. on 





(Bark.) 





standing. 





45. Eucalyptus 



Dark brownish 



Dark brown ppt. 



No change. 



maculata, Hook, 



drab ppt. 







(Kino.) 









46. Eremophila 



Very dark 



No change. 



No change. 



longit'olia, F.v.M. 



brown ppt. 







(Bark.) 









47. Eremophila 



Dark olive- 



Turbidity ; darkens 



No change. 



longit'olia, F.v.M. 



brown ppt. 



liquid on standing. 





(Leaves.) 









48. Polygonum 



Light brown 



No change. 



No change. 



plebejum, R. Br. 



precipitate. 







(Whole plant except root.) 









49. GrREVILLEA 



Dark purplish- 



No change; tnrbidity 



No change. 



striata, R. Br. 



brown ppt. 



on standing. 





(Bark.) 









50. Hakea 



Purplish-grey 



Turbidity. 



Slight turbidity. 



leucoptera, R. Br. 



precipitate. 







(Bark.) 









51. Banksia 



Dark reddish- 



No change. 



No change. 



integrifolia, Linn. f. 



brown ppt. 







(Bark.) 









52. Banrsia 



Very dark pur- 



Turbidity. 



No change. 



serrata, Linn. f. 



plish-grey 







(Bark.) 



precipitate. 







53. Casuarina 



Purplish-brown 



Turbidity. 



No change. 



glauca, Sicb. 



precipitate. 







(Bark.) 









54. Excocarpus 



Very light 



Turbidity. 



No change. 



cupressiformis, LabiU. 



purplish- 







(Bark.) 



brown ppt. 







