The instruments described in this chapter are not currently supported by
the staff of the Royal Observatories, though they may be available as
an ``own'' instrument (see chapter 
) in collaboration
with or supported by the instrument provider. Potential users must contact
the instrument provider prior to applying for time with such an instrument.
Current principal contacts for the instruments in this category are listed
below. Updates to this list will be provided in Spectrum or on the
World-Wide-Web.