New Southern Open Clusters

Twenty-two hitherto unreported open clusters have been found on a series of Kodak 103a-O plates exposed for 10 minutes with the Mount Stromlo 74-inch reflector diaphragmed to 45 inches, and reaching a limiting magnitude of 16-17.The plates, totalling 98, were centered on the open clusters listed by Trumpler as being south of -45° declination. 1 Photographic reproductions of the plates, each covering an area of 50' X 50' at a scale of 15'/mm, have been made to form an Atlas of Southern Open Clusters.*Initially, the clusters were recognized from their visual appearance.This procedure is, of course, open to question, for the extent to which a group of stars appears as a cluster is subject to personal bias, to the scale of the plate, and to the nature of the surroundings.As a partial confirmation of