# File lib/linguistics/en.rb, line 1014
    def to_hundreds( hundreds, tens=0, units=0, thousands=0, joinword=" and " )
        joinword = ' ' if joinword.empty?
        if hundreds.nonzero?
            return to_units( hundreds ) + " hundred" +
                (tens.nonzero? || units.nonzero? ? joinword : '') +
                to_tens( tens, units ) +
                to_thousands( thousands )
        elsif tens.nonzero? || units.nonzero?
            return to_tens( tens, units ) + to_thousands( thousands )
        else
            return nil
        end
    end