Description of the overall procedure Combine the "ucles" procedures to normalise and merge orders from a 2d echelle frame into a single spectrum. Read an UCLES echelle spectrum written by IRAF as a 4-column ASCII file Find a continuum and normalies a 2d echelle frame Resample a 2d echelle frame onto a uniform wavelength scale Procedure to merge orders from a 2d echelle frame into a single spectrum. Inspect the data