18 Notices of the Labours of Continental Chemists. 



acid seems to differ from the anisic solely in being insoluble 

 in aether;, it would be worth while to examine this point further. 

 Both acids are formed equally well outof all three oils. — H. C] 



Badianic acid is more soluble in water. 



By the action of chromic acid on Roman carraway oil, 

 Persoz obtained two acids, cyminic and cumino-cyminic. The 

 former melts at 115°; it is tasteless, little soluble in cold water, 

 easily in alcohol and aether. The latter is insoluble in all 

 three liquids. It is not decomposed by boiling with strong 

 sulphuric acid. From some other oils new acids have been 

 obtained, but as both they and those above have not yet been 

 fully described, it will be better to defer any further report 

 upon them for the present. Oil of cinnamon gives acetic and 

 benzoic acids, and according to Marchand a considerable 

 quantity of hydruret of benzoyl. It must be remarked that in 

 these reactions acetic acid is always formed. — (Comptes Rendus, 

 torn. xiii. No. 8. p. 433.) 



Action of Hydrate of Potassa on Hydrobenzamid. 



Rochleder finds the formula for hydrobenzamid to be 

 C 21 H 18 N 2 ; when fused with the hydrate it becomes yellow, 

 at last black, and ammonia is evolved ; the residual mass is 

 washed with water. The washed powder is yellow, fusible at 

 a gentle heat, decomposed at a higher temperature, partly 

 soluble in alcohol and aether: it consists of three bodies; the 

 first is found in small quantities at the commencement of the 

 operation ; it is a yellow oil soluble in alcohol, but has not been 

 further examined : the second is soluble in alcohol, white and 

 crystalline ; the author calls itbenzostilbin : the third, benzolon, 

 is also white and crystalline, but insoluble in alcohol ; it is 

 formed during the latter part of the operation. 



Benzostilbin when freed from oil is not very soluble in al- 

 cohol, soluble in aether, by means of which it can be obtained in 

 large crystals. Melts at 244'5° C, and at a higher temperature 

 sublimes, but not unchanged ; soluble in concentrated sul- 

 phuric acid with blood-red colour. Not decomposed by 

 boiling with caustic potassa. Formula C 31 H 22 O 2 . 



Benzolon is purified by solution in warm sulphuric acid 

 and precipitation out of the red solution by alcohol. It is 

 crystalline, insoluble in water and alcohol, melts at 248° C, 

 sublimes almost unchanged. Decomposed by fuming nitric 

 acid. Formula C 11 H 8 O 1 , or benzon minus benzin (benzol.) 

 — {Ann. der Chem. und Pharm., vol. xli. p. 89.) 



On the Salts q/Uvic (Racemic) Acid. 

 Uvic acid is monobasic according to Fresenius, and this is 

 its principal point of difference from tartaric acid. In the 



