Summary The per cent. bromination of twelve t-alkylbenzenes in goy0 acetic acid in 25 hours has been found to be t-butylbenzene, 5.50, t-amylbenzene 7.30, dimethyl-i- propylcarbinylbenzene 6.95, methyldiethylcarbinylbenzene 9.00, dimethyl- nbutylcarbinylbenzene 7.30, triethylcarbinylbenzene 10.20, methyldi-n- propylcarbinylbenzene 9.80, methylethyl-n-butylcarbinylbenzene 10.00, methylethyl-i- ...