CHARACTERISTICS, ORIGIN, AND HISTORY
Peculiarities of the dancing mouse—Markings and method of keeping record of individuals—The dancer in China and Japan (Kishi, Mitsukuri, Hatai)— Theories concerning the origin of the race: selectional breeding; the inheritance of an acquired character; mutation, inheritance, and selectional breeding; pathological changes; natural selection—Instances of the occurrence of dancers among other kinds of mice—Results of crossing dancer with other kinds of mice.