TABLE OF CONTENTS. XI 



Carbon sulphoxide, Carbon bisulphide . . . 223 

 Sulphocarbonic, Oxysulphocarbonic, Xanthogenic 



acids, Carbonyldisulphethyl .... 224 



CarlDamic, Sulpliocarbamic acids .... 226 



Urea (Carbamide) 227 



Compound ureas ....... 230 



Sulphocarbamide 231 



Uric acid 232 



Derivatives of Uric acid 233 



Xanthine, Sarcine 246 



Guanine, Glycocyamine, Glycocyamidine, Creatine, 



Creatinine 247 



II. BENZENE DERIVATIVES (AROMATIC COMPOUNDS). 



FIRST GROUP. 



A. HYDROCARBONS, C Jl H2-6 353 



Benzene 253 



Addition-products and substitution-products of ben 

 zene, anilin, etc. ....... 254 



Diphenyl, Diphenylbenzene 270 



Toluene 273 



Toluidin, Anilin-dyes 277 



Benzylbenzenc, Benzyltoluene, Ditolyl, Dibenzyl, 



Stilbene, Tolan 282 



Hydrocarbons, C 8 II 10 (Dimetliylbenzenes, Ethyl- 

 benzene) 283 



Hydrocarbons, C 9 H 12 (Mesitylene, Pseudocumene, 



Ethylmethylbenzene, Propylbenzene) . . 286 



Hydrocarbons, C 10 !! 1 * 288 



Hydrocarbons with a greater number of carbon 



atoms 289 



B. PHENOLS 290 



a. Monatomic Phenols 290 



Phenol 290 



Cresols (Ortho-, Meta-, Paracresol) . . .298 



Phenols, C 8 H O (Xylenols, Phlorol, Ethylphenol) 299 



Phenols, C H U O (Thymol, Cyniophenol) . . 300 



&. Quinones ......... 301 



Quinone, Quinhydrone 301 



Toluquinone, Phlorone, Thyrnoquinone . . 303 



c. Diatomic Phenols 303 



Dioxybenzenes (Hydroquinone, Pyrocatechin, Re- 



sorcin) 303 



Orcin 307 



Creosol 309 



Hydrophloron, Betaorcin, Yeratrol . . .309 



Thymohydroquinone 310 



d. Triatomic Phenols 310 



Pyrogallic acid, Phloroglucin . . . .310 



