  We present the observational results of our search for emission-line galaxies
(ELG) towards nearby voids. In order to find ELG, we started a survey using the
IIIa-J objective prism plates from the Hamburg QSO Survey. The plates are
digitized and an automatic procedure was applied to select the candidates.
Digitized direct plates were used to determine coordinates and to reject
overlaps between spectra. A total area of 1248 square degrees was scanned,
distributed in four different regions.
  All the selected objects were observed with follow-up spectroscopy. We have
obtained a final sample of 203 objects, of which 196 are emission-line
galaxies, four are galaxies with absorption lines and three are QSOs. Almost
half of our objects are newly discovered ones and three quarters of the given
redshifts are new. Our sample contains mainly high ionization galaxies and is
less sensitive in the detection of low-ionization objects. The apparent
magnitudes, as derived from the objective prism plates, range between
15.0<B<19.5. The sample is dominated by nearby galaxies, with a peak in the
redshift distribution at cz=4500\,km/s.
