We are proposing to observe a small sample of low-mass X-ray
 binaries at 10 and 90 microns.  This will extend the wavelength
 at which the accretion discs and secondary stars have been
 detected by a factor 4 to 40.  This will allow us to test the
 mechanisms by which the accretion discs produce light.  More
 importantly, the longest wavelengths that these systems have
 been observed at to date suggest there is another, as yet
 unidentified source of IR light.  The long wavelength
 coverage of ISO is the only way of showing if this really exists.

 One target of the five in this proposal is a ToO.