266 Scientific Intelligence. 
ne 
Trichlorphenomalic acid may be regarded as a chlorinated derivative of 
an acid homologous with malic acid, 8, H. 72; the acid is color- 
less, crystalline and soluble in water, alcohol, benzol and ether. Its den- 
sity when fused and solidified is 1-5, at 131°-132° C. it fuses, and at a 
Ih C 
€,H,Cl,0,+(BaHO),— 3BaCl+€,H,Ba,0,+5(0H,). : 
The author terms this acid phenaconic acid, and describes a number : 
of its salts. In addition to the crystallized trichlorphenomalic acid, an 
. (C,2H;)2=C2,H,,(2C,,H, =C,,H,,+2H). 
The author considers it as formed from benzol by the replacement of 
two atoms of hydrogen by an equal volume of benzol so that C,2Ms 
ee. The phenyl obtained in this way is identical with that 
passes over, which - identical with chrysen. Berthelot gives b . sy! 
| 36442 H.-C. 6H) and considers 
ald of the unknown hydrocarbon C,H aE ras chrysen an orang? 
y passes over which is almost insoluble in alco” 
‘ uses to fluoresce and which gives with picric %" 
f ngntly soluble peculiar compound. In the ion dn remains & inet 
ydrocarbon which does not volatilize at a red heat and which on coh 
in small quantities. ‘Toluol like bead i eni ene 
mall quan | partially decom i 
rectificat foo Sen earns tube. The products of the action OY © tag 
