TABLE OF CONTENTS. Xlll 



PAGE 



d. Monobasic tetratomic acids 360 



Gallic acid 360 



Rufigallic acid 361 



Supplement : Quinic acid ..... 361 



e. Sibasic acids ........ 362 



Benzenedicarbonic acids (Plitalic, Isoplitalic, Tere- 



phtalic acids) 362 



Acids, C 2 H 8 4 (Uvitic, Xylidinic, Isuvitic acids) . 366 

 Acids, C 10 H I0 4 (Cumidinic acid) . . . .367 



/. Tribasic acids 367 



Benzenetricarbonic acids (Trimesic, Heinimellitic, 



Trimellitic acids) 367 



g. Tetrabasic acids ....... 368 



Benzenetetracarbonic acids (Pyromcllitic, Prehni- 



tic, Mellophanic acids) 368 



h. Hexabasic acids ........ 370 



Mellitic, Hydromellitic acids .... 370 



SECOND GROUP. 



Cinnamene (Styrol) 372 



Styryl alcohol 373 



Cinnamic aldehyde ...... 373 



Cinnamic acid 374 



Atropic, Isatropic acids ...... 376 



Phenylangelic acid ...... 376 



Coumarin and homologous compounds . . . 377 



Coumaric, Paracoumaric acids .... 378 



Caffei c acid 378 



THIRD GROUP. 



Acetcnylbenzene (Phenylacetylene) . . . 379 



Diacetenylphenyl . 379 



Phenylpropiolic acid 380 



Supplement : 



Anethol . . . . . . . . . 380 



Eugenol, Eugctic, Sinapic, Hemipinic, Opianic 



acids, Meconin, Hydropiperic acid . . . 381 



FOURTH GROUP, INDIGO-GROUP. 



Indigo-blue 383 



Indigo-white 385 



Isatin 387 



Trioxindol (Isatic acid), Dioxindol (Hydrindic 



acid) 388 



Oxindol, Indol, Isatyde, Indin . . . .389 



III. NAPHTHALENE-DERIVATIVES. 



A. HYDROCARBONS, C n H 2 *- 12 391 



Naphthalene . 

 B 



