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

 QUALITATIVE TESTS, (Dilute Extract)— continued. 



213 



14 



15 



16 



17 



Mercuric Chloride. 



Ammoniun Molybdate 

 in Nitric Acid. 



Potassium ferrocyanide 



Zmc Acetate. 



No change. 



Darkens the liquid. 



No change. 



Light olive-brown ppt. 



Pale salmon ppt. 

 No change. 



Ditto. 

 Ditto. 



Ditto ; light reddish- 

 brown precipitate on 

 standing. 



No change. 



Purplish-grey ppt. 

 Yellow precipitate. 



Ditto. 



Ditto. 



Ditto. 



Reddish-brown ppt. 



Ditto. 



Ditto. 



Ditto. 



Pale brown ppt. 



Salmon precipitate . 

 Ditto. 



Ditto ; very dark olive- 

 brown ppt. on stand- 

 ing. [See Notes.] 



Ditto. 



Ditto. 



Ditto ; turbidity on 

 standing. 



Purplish-grey ppt. 

 Ditto. 



Ditto. 



Ditto- 



No change. 



Ditto. 



Turbidity. 



Ditto ; slight brownish 

 ppt. on standing. 



Ditto ; slight purplish 

 precipitate on stand- 



Light brown ppt. 



No change. 



Darkens liquid. 



No change. 



Reddish-brown ppt. 



Ditto. 



Ditto. 



Ditto. 



Pale olive-brown ppt. 

 in small quantity. 



Ditto. 



Ditto. 



Ditto. 



Whitish-brown ppt. 

 in small qua-ntity. 



Ditto. 



Ditto. 



Ditto ; turbidity on 

 standing. 



Brown precipitate. 



Ditto. 



Ditto. 



No change. 



Yellowish-drab ppt. 



Ditto. 



Ditto. 



Ditto. 



Very dark brown ppt. 



No change ; turbidity 

 on standing. 



Darkens liquid. 



No change. 



Dark olive -brown ppt. 



Ditto. 



Ditto. 



Ditto. 



Light olive-brown ppt. 



Ditto. 



Ditto. 



Ditto. 



Light purplish-brown 

 precipitate. 



Turbidity. 



Ditto. 



Ditto. 



Light brown ppt. 



No change ; very slight 

 pale brown ppt. on 

 standing. 



Ditto. 



Ditto. 



Ditto. 



Ditto; fairly copious 

 dark olive-brown ppt. 

 on standing. 



Darkens liquid. 



Ditto. 

 Ditto. 

 Ditto. 



Reddish-brown ppt. 



Dark purplish-grey 

 precipitate. 



Reddish-brown ppt. 



Turbidity ; pale brown 

 precipitate on stand - 



Ditto. 



Ditto ; Sienna ppt. on 

 standing. 



Light reddish-brown 

 precipitate. 



