... We present a simple, e#ective technique that allows the con­ temporary spectroscopy of all the objects, up to a limiting magnitude, contained in a # 100 arcmin 2 field. This technique makes possible the immediate and unambiguous identification of peculiar objects included in the field. ... We show that this technique should also be quite useful in emission line and WR star surveys, and illustrate the software procedures devel­ oped to make the wavelength and flux calibration of these spectra. ...