Volume indexes and cumulative indexes
Most journals (the academic periodicals) publish an index to each
volume of the journal. In some cases they are published, only at the
end of the year, with the last issue of the volume. In other cases
they are included as a loose insert in one of the early issues of
the new, following volume. This means that when you are using a bound
volume of a journal you should find an index at the back or in the
front of the volume. When you are using an unbound journal look for
the index as a loose insert in one of the first issues of the next
volume.
Some publishers of journals go one step further: - they publish cumulative
indexes. These are indexes that cover not just the current or
previous volumes, but that cover all earlier volumes over the years.
They will be shelved with the journal. Note that these indexes cover
that one title only.