The latter Youth (who used to be called Heigh-ho Dobbin, Gee-ho Dobbin, and by many other names indicative of puerile contempt) was the quietest, the clumsiest, and, as it seemed, the dullest of all Dr. Swishtail's young gentlemen. 
Dobbin (who used to be called Heigh-ho Dobbin, Gee-up Dobbin, and other contemptuous names) was the quietest, clumsiest, and, it seemed, the dullest of Dr. Swishtail's pupils. 