CHAPTER 88. Schools and Schoolmasters. The previous chapter gave account of an immense body or herd of Sperm Whales, and there was also then given the probable cause inducing those vast aggregations. Now, though such great bodies are at times encountered, yet, as must have been seen, even at the present day, small detached bands are occasionally observed, embracing from twenty to fifty individuals each. Such bands are known as schools. They generally are of two sorts; those composed almost entirely of females, and those mustering none but young vigorous males, or bulls, as they are familiarly designated. In cavalier