U ₃ s{cyrillic}i{cyrillic}m{cyrillic}m{cyrillic}ye{cyrillic}t{cyrillic}r{cyrillic}i{cyrillic}ya{cyrillic} m{cyrillic}ye{cyrillic}zh{cyrillic}d{cyrillic}u{cyrillic} b{cyrillic}a{cyrillic}r{cyrillic}i{cyrillic}o{cyrillic}n{cyrillic}a{cyrillic}m{cyrillic}i{cyrillic} i{cyrillic} m{cyrillic}ye{cyrillic}z{cyrillic}o{cyrillic}n{cyrillic}a{cyrillic}m{cyrillic}i{cyrillic}

The group U _{3 J}, where the spin and baryonic number replace the isospin and hypercharge respectively, is discussed. The spinchanging currents are constructed in terms of a fermion field which is a Goldstone field arising from the nonlinearity of the transformation laws. All the other fields are considered as being formed from this fundamental field. For a relatively simple model, irreducible representations containing together mesons and baryons, and corresponding mass formulae are obtained.