A grazing‐incidence vacuum spectrograph for a twenty‐one foot focal‐length grating has been set up and adjusted. The angle of incidence is 79 degrees. The various adjustments on the instrument which enabled rapid focussing are described. Very sharp lines have been obtained, and some spectrograms of copper are compared with others which were taken by a one‐meter grazing‐incidence vacuum spectrograph. These definitely show the advantage of the large dispersion of the new instrument. Several groups of lines have been found which appear to be multiplets but as yet have not been classified. Work is being continued on Be, B, Al, Cu, Ni, Co and Zn.